Home / 1,092,413,105.80-1,638,619,658.70-966,142,724.20

Finding the Fourth Proportional to 1,092,413,105.80, 1,638,619,658.70 and 966,142,724.20

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Solution

The fourth proportional to 1,092,413,105.80, 1,638,619,658.70 and 966,142,724.20 is: 1,449,214,086.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,413,105.80 : 1,638,619,658.70 = 966,142,724.20 : x
  2. Step 2: Convert to fraction form
    1,092,413,105.80/1,638,619,658.70 = 966,142,724.20/x
  3. Step 3: Cross multiply
    1,092,413,105.80x = 1,638,619,658.70 × 966,142,724.20
  4. Step 4: Simplify right side
    1,092,413,105.80x = 1,583,140,460,984,092,416
  5. Step 5: Solve for x
    x = 1,583,140,460,984,092,416/1,092,413,105.80
  6. Step 6: Final answer
    x = 1,449,214,086.30

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Half scale
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Double scale
Find fourth proportional to 1,092,413,106.80, 1,638,619,660.20 and 966,142,725.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.