Home / 78,862,943.83-108,836,753.53-45,382,685.71

Finding the Fourth Proportional to 78,862,943.83, 108,836,753.53 and 45,382,685.71

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Solution

The fourth proportional to 78,862,943.83, 108,836,753.53 and 45,382,685.71 is: 62,631,496.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,862,943.83 : 108,836,753.53 = 45,382,685.71 : x
  2. Step 2: Convert to fraction form
    78,862,943.83/108,836,753.53 = 45,382,685.71/x
  3. Step 3: Cross multiply
    78,862,943.83x = 108,836,753.53 × 45,382,685.71
  4. Step 4: Simplify right side
    78,862,943.83x = 4,939,304,178,604,539
  5. Step 5: Solve for x
    x = 4,939,304,178,604,539/78,862,943.83
  6. Step 6: Final answer
    x = 62,631,496.35

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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.