Home / 57,234,160.14-78,984,140.94-31,128,855.12

Finding the Fourth Proportional to 57,234,160.14, 78,984,140.94 and 31,128,855.12

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Solution

The fourth proportional to 57,234,160.14, 78,984,140.94 and 31,128,855.12 is: 42,958,363.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,234,160.14 : 78,984,140.94 = 31,128,855.12 : x
  2. Step 2: Convert to fraction form
    57,234,160.14/78,984,140.94 = 31,128,855.12/x
  3. Step 3: Cross multiply
    57,234,160.14x = 78,984,140.94 × 31,128,855.12
  4. Step 4: Simplify right side
    57,234,160.14x = 2,458,685,880,098,920.50
  5. Step 5: Solve for x
    x = 2,458,685,880,098,920.50/57,234,160.14
  6. Step 6: Final answer
    x = 42,958,363.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.