Home / 6,428,508.62-8,870,755.64-3,814,562.21

Finding the Fourth Proportional to 6,428,508.62, 8,870,755.64 and 3,814,562.21

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Solution

The fourth proportional to 6,428,508.62, 8,870,755.64 and 3,814,562.21 is: 5,263,747.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428,508.62 : 8,870,755.64 = 3,814,562.21 : x
  2. Step 2: Convert to fraction form
    6,428,508.62/8,870,755.64 = 3,814,562.21/x
  3. Step 3: Cross multiply
    6,428,508.62x = 8,870,755.64 × 3,814,562.21
  4. Step 4: Simplify right side
    6,428,508.62x = 33,838,049,175,061.77
  5. Step 5: Solve for x
    x = 33,838,049,175,061.77/6,428,508.62
  6. Step 6: Final answer
    x = 5,263,747.97

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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.