Home / 142,266,937.60-213,378,057.60-45,209,854.72

Finding the Fourth Proportional to 142,266,937.60, 213,378,057.60 and 45,209,854.72

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Solution

The fourth proportional to 142,266,937.60, 213,378,057.60 and 45,209,854.72 is: 67,807,680.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,266,937.60 : 213,378,057.60 = 45,209,854.72 : x
  2. Step 2: Convert to fraction form
    142,266,937.60/213,378,057.60 = 45,209,854.72/x
  3. Step 3: Cross multiply
    142,266,937.60x = 213,378,057.60 × 45,209,854.72
  4. Step 4: Simplify right side
    142,266,937.60x = 9,646,790,984,531,792
  5. Step 5: Solve for x
    x = 9,646,790,984,531,792/142,266,937.60
  6. Step 6: Final answer
    x = 67,807,680.04

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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.