Home / 18,711,510.20-28,067,265.30-18,459,567.80

Finding the Fourth Proportional to 18,711,510.20, 28,067,265.30 and 18,459,567.80

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Solution

The fourth proportional to 18,711,510.20, 28,067,265.30 and 18,459,567.80 is: 27,689,351.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711,510.20 : 28,067,265.30 = 18,459,567.80 : x
  2. Step 2: Convert to fraction form
    18,711,510.20/28,067,265.30 = 18,459,567.80/x
  3. Step 3: Cross multiply
    18,711,510.20x = 28,067,265.30 × 18,459,567.80
  4. Step 4: Simplify right side
    18,711,510.20x = 518,109,586,765,937.38
  5. Step 5: Solve for x
    x = 518,109,586,765,937.38/18,711,510.20
  6. Step 6: Final answer
    x = 27,689,351.70

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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.