Home / 18,711,510.30-28,067,265.45-13,672,662.30

Finding the Fourth Proportional to 18,711,510.30, 28,067,265.45 and 13,672,662.30

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Solution

The fourth proportional to 18,711,510.30, 28,067,265.45 and 13,672,662.30 is: 20,508,993.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711,510.30 : 28,067,265.45 = 13,672,662.30 : x
  2. Step 2: Convert to fraction form
    18,711,510.30/28,067,265.45 = 13,672,662.30/x
  3. Step 3: Cross multiply
    18,711,510.30x = 28,067,265.45 × 13,672,662.30
  4. Step 4: Simplify right side
    18,711,510.30x = 383,754,242,182,307.56
  5. Step 5: Solve for x
    x = 383,754,242,182,307.56/18,711,510.30
  6. Step 6: Final answer
    x = 20,508,993.45

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Double scale
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Similar ratio
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1.5x scale

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.