Home / 21,191,860.20-31,787,790.30-16,940,332.20

Finding the Fourth Proportional to 21,191,860.20, 31,787,790.30 and 16,940,332.20

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Solution

The fourth proportional to 21,191,860.20, 31,787,790.30 and 16,940,332.20 is: 25,410,498.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,191,860.20 : 31,787,790.30 = 16,940,332.20 : x
  2. Step 2: Convert to fraction form
    21,191,860.20/31,787,790.30 = 16,940,332.20/x
  3. Step 3: Cross multiply
    21,191,860.20x = 31,787,790.30 × 16,940,332.20
  4. Step 4: Simplify right side
    21,191,860.20x = 538,495,727,585,937.62
  5. Step 5: Solve for x
    x = 538,495,727,585,937.62/21,191,860.20
  6. Step 6: Final answer
    x = 25,410,498.30

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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.