Home / 10,639,200.80-15,958,801.20-7,391,943.20

Finding the Fourth Proportional to 10,639,200.80, 15,958,801.20 and 7,391,943.20

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Solution

The fourth proportional to 10,639,200.80, 15,958,801.20 and 7,391,943.20 is: 11,087,914.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639,200.80 : 15,958,801.20 = 7,391,943.20 : x
  2. Step 2: Convert to fraction form
    10,639,200.80/15,958,801.20 = 7,391,943.20/x
  3. Step 3: Cross multiply
    10,639,200.80x = 15,958,801.20 × 7,391,943.20
  4. Step 4: Simplify right side
    10,639,200.80x = 117,966,552,010,491.84
  5. Step 5: Solve for x
    x = 117,966,552,010,491.84/10,639,200.80
  6. Step 6: Final answer
    x = 11,087,914.80

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Double scale
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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.