Home / 12,520,603.50-17,278,121.22-7,013,941.86

Finding the Fourth Proportional to 12,520,603.50, 17,278,121.22 and 7,013,941.86

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Solution

The fourth proportional to 12,520,603.50, 17,278,121.22 and 7,013,941.86 is: 9,679,065.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,520,603.50 : 17,278,121.22 = 7,013,941.86 : x
  2. Step 2: Convert to fraction form
    12,520,603.50/17,278,121.22 = 7,013,941.86/x
  3. Step 3: Cross multiply
    12,520,603.50x = 17,278,121.22 × 7,013,941.86
  4. Step 4: Simplify right side
    12,520,603.50x = 121,187,737,687,112.27
  5. Step 5: Solve for x
    x = 121,187,737,687,112.27/12,520,603.50
  6. Step 6: Final answer
    x = 9,679,065.21

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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.