Home / 72,617,689.80-108,814,560.30-62,987,891.40

Finding the Fourth Proportional to 72,617,689.80, 108,814,560.30 and 62,987,891.40

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Solution

The fourth proportional to 72,617,689.80, 108,814,560.30 and 62,987,891.40 is: 94,384,711.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,617,689.80 : 108,814,560.30 = 62,987,891.40 : x
  2. Step 2: Convert to fraction form
    72,617,689.80/108,814,560.30 = 62,987,891.40/x
  3. Step 3: Cross multiply
    72,617,689.80x = 108,814,560.30 × 62,987,891.40
  4. Step 4: Simplify right side
    72,617,689.80x = 6,853,999,706,915,151
  5. Step 5: Solve for x
    x = 6,853,999,706,915,151/72,617,689.80
  6. Step 6: Final answer
    x = 94,384,711.57

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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.