Home / 20,442,421.17-28,210,873.80-11,149,988.85

Finding the Fourth Proportional to 20,442,421.17, 28,210,873.80 and 11,149,988.85

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Solution

The fourth proportional to 20,442,421.17, 28,210,873.80 and 11,149,988.85 is: 15,387,166.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,442,421.17 : 28,210,873.80 = 11,149,988.85 : x
  2. Step 2: Convert to fraction form
    20,442,421.17/28,210,873.80 = 11,149,988.85/x
  3. Step 3: Cross multiply
    20,442,421.17x = 28,210,873.80 × 11,149,988.85
  4. Step 4: Simplify right side
    20,442,421.17x = 314,550,928,318,757.12
  5. Step 5: Solve for x
    x = 314,550,928,318,757.12/20,442,421.17
  6. Step 6: Final answer
    x = 15,387,166.02

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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.