Home / 20,776,421.80-31,165,167.30-9,844,046.20

Finding the Fourth Proportional to 20,776,421.80, 31,165,167.30 and 9,844,046.20

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Solution

The fourth proportional to 20,776,421.80, 31,165,167.30 and 9,844,046.20 is: 14,766,322.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,421.80 : 31,165,167.30 = 9,844,046.20 : x
  2. Step 2: Convert to fraction form
    20,776,421.80/31,165,167.30 = 9,844,046.20/x
  3. Step 3: Cross multiply
    20,776,421.80x = 31,165,167.30 × 9,844,046.20
  4. Step 4: Simplify right side
    20,776,421.80x = 306,791,346,731,929.25
  5. Step 5: Solve for x
    x = 306,791,346,731,929.25/20,776,421.80
  6. Step 6: Final answer
    x = 14,766,322.60

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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.