Home / 8,518,227.90-12,777,341.85-7,902,368.70

Finding the Fourth Proportional to 8,518,227.90, 12,777,341.85 and 7,902,368.70

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Solution

The fourth proportional to 8,518,227.90, 12,777,341.85 and 7,902,368.70 is: 11,853,553.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518,227.90 : 12,777,341.85 = 7,902,368.70 : x
  2. Step 2: Convert to fraction form
    8,518,227.90/12,777,341.85 = 7,902,368.70/x
  3. Step 3: Cross multiply
    8,518,227.90x = 12,777,341.85 × 7,902,368.70
  4. Step 4: Simplify right side
    8,518,227.90x = 100,971,266,304,640.09
  5. Step 5: Solve for x
    x = 100,971,266,304,640.09/8,518,227.90
  6. Step 6: Final answer
    x = 11,853,553.05

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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.