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Finding the Fourth Proportional to 18,337,373.86, 27,506,974.47 and 6,978,702.82

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Solution

The fourth proportional to 18,337,373.86, 27,506,974.47 and 6,978,702.82 is: 10,468,401.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,337,373.86 : 27,506,974.47 = 6,978,702.82 : x
  2. Step 2: Convert to fraction form
    18,337,373.86/27,506,974.47 = 6,978,702.82/x
  3. Step 3: Cross multiply
    18,337,373.86x = 27,506,974.47 × 6,978,702.82
  4. Step 4: Simplify right side
    18,337,373.86x = 191,963,000,131,028.62
  5. Step 5: Solve for x
    x = 191,963,000,131,028.62/18,337,373.86
  6. Step 6: Final answer
    x = 10,468,401.95

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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.