Home / 14,228,508.62-21,329,685.12-5,128,379.12

Finding the Fourth Proportional to 14,228,508.62, 21,329,685.12 and 5,128,379.12

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Solution

The fourth proportional to 14,228,508.62, 21,329,685.12 and 5,128,379.12 is: 7,687,855.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,228,508.62 : 21,329,685.12 = 5,128,379.12 : x
  2. Step 2: Convert to fraction form
    14,228,508.62/21,329,685.12 = 5,128,379.12/x
  3. Step 3: Cross multiply
    14,228,508.62x = 21,329,685.12 × 5,128,379.12
  4. Step 4: Simplify right side
    14,228,508.62x = 109,386,711,805,582.70
  5. Step 5: Solve for x
    x = 109,386,711,805,582.70/14,228,508.62
  6. Step 6: Final answer
    x = 7,687,855.05

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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.