Home / 142,120,854.09-213,187,865.04-43,756,966.53

Finding the Fourth Proportional to 142,120,854.09, 213,187,865.04 and 43,756,966.53

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Solution

The fourth proportional to 142,120,854.09, 213,187,865.04 and 43,756,966.53 is: 65,637,476.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,120,854.09 : 213,187,865.04 = 43,756,966.53 : x
  2. Step 2: Convert to fraction form
    142,120,854.09/213,187,865.04 = 43,756,966.53/x
  3. Step 3: Cross multiply
    142,120,854.09x = 213,187,865.04 × 43,756,966.53
  4. Step 4: Simplify right side
    142,120,854.09x = 9,328,454,275,157,438
  5. Step 5: Solve for x
    x = 9,328,454,275,157,438/142,120,854.09
  6. Step 6: Final answer
    x = 65,637,476.88

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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.