Home / 7,680,340.80-11,520,511.20-7,307,092.80

Finding the Fourth Proportional to 7,680,340.80, 11,520,511.20 and 7,307,092.80

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Solution

The fourth proportional to 7,680,340.80, 11,520,511.20 and 7,307,092.80 is: 10,960,639.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680,340.80 : 11,520,511.20 = 7,307,092.80 : x
  2. Step 2: Convert to fraction form
    7,680,340.80/11,520,511.20 = 7,307,092.80/x
  3. Step 3: Cross multiply
    7,680,340.80x = 11,520,511.20 × 7,307,092.80
  4. Step 4: Simplify right side
    7,680,340.80x = 84,181,444,441,839.36
  5. Step 5: Solve for x
    x = 84,181,444,441,839.36/7,680,340.80
  6. Step 6: Final answer
    x = 10,960,639.20

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Double scale
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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.