Home / 1,092,146,179.20-1,638,219,268.80-315,817,166.40

Finding the Fourth Proportional to 1,092,146,179.20, 1,638,219,268.80 and 315,817,166.40

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Solution

The fourth proportional to 1,092,146,179.20, 1,638,219,268.80 and 315,817,166.40 is: 473,725,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,146,179.20 : 1,638,219,268.80 = 315,817,166.40 : x
  2. Step 2: Convert to fraction form
    1,092,146,179.20/1,638,219,268.80 = 315,817,166.40/x
  3. Step 3: Cross multiply
    1,092,146,179.20x = 1,638,219,268.80 × 315,817,166.40
  4. Step 4: Simplify right side
    1,092,146,179.20x = 517,377,767,414,295,872
  5. Step 5: Solve for x
    x = 517,377,767,414,295,872/1,092,146,179.20
  6. Step 6: Final answer
    x = 473,725,749.60

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Double scale
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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.