Home / 21,915,934.20-32,873,901.30-9,145,603.80

Finding the Fourth Proportional to 21,915,934.20, 32,873,901.30 and 9,145,603.80

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Solution

The fourth proportional to 21,915,934.20, 32,873,901.30 and 9,145,603.80 is: 13,718,405.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,915,934.20 : 32,873,901.30 = 9,145,603.80 : x
  2. Step 2: Convert to fraction form
    21,915,934.20/32,873,901.30 = 9,145,603.80/x
  3. Step 3: Cross multiply
    21,915,934.20x = 32,873,901.30 × 9,145,603.80
  4. Step 4: Simplify right side
    21,915,934.20x = 300,651,676,650,105
  5. Step 5: Solve for x
    x = 300,651,676,650,105/21,915,934.20
  6. Step 6: Final answer
    x = 13,718,405.70

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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.