Home / 20,711,159.72-31,066,895.25-9,193,530.59

Finding the Fourth Proportional to 20,711,159.72, 31,066,895.25 and 9,193,530.59

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Solution

The fourth proportional to 20,711,159.72, 31,066,895.25 and 9,193,530.59 is: 13,790,364.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,711,159.72 : 31,066,895.25 = 9,193,530.59 : x
  2. Step 2: Convert to fraction form
    20,711,159.72/31,066,895.25 = 9,193,530.59/x
  3. Step 3: Cross multiply
    20,711,159.72x = 31,066,895.25 × 9,193,530.59
  4. Step 4: Simplify right side
    20,711,159.72x = 285,614,451,953,118.38
  5. Step 5: Solve for x
    x = 285,614,451,953,118.38/20,711,159.72
  6. Step 6: Final answer
    x = 13,790,364.99

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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.