Home / 20,070,728.50-27,695,384-11,129,613.89

Finding the Fourth Proportional to 20,070,728.50, 27,695,384 and 11,129,613.89

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Solution

The fourth proportional to 20,070,728.50, 27,695,384 and 11,129,613.89 is: 15,357,635.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,070,728.50 : 27,695,384 = 11,129,613.89 : x
  2. Step 2: Convert to fraction form
    20,070,728.50/27,695,384 = 11,129,613.89/x
  3. Step 3: Cross multiply
    20,070,728.50x = 27,695,384 × 11,129,613.89
  4. Step 4: Simplify right side
    20,070,728.50x = 308,238,930,455,283.75
  5. Step 5: Solve for x
    x = 308,238,930,455,283.75/20,070,728.50
  6. Step 6: Final answer
    x = 15,357,635.40

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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.