Home / 12,985,916.62-17,921,092.44-7,184,603.88

Finding the Fourth Proportional to 12,985,916.62, 17,921,092.44 and 7,184,603.88

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Solution

The fourth proportional to 12,985,916.62, 17,921,092.44 and 7,184,603.88 is: 9,915,045.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,985,916.62 : 17,921,092.44 = 7,184,603.88 : x
  2. Step 2: Convert to fraction form
    12,985,916.62/17,921,092.44 = 7,184,603.88/x
  3. Step 3: Cross multiply
    12,985,916.62x = 17,921,092.44 × 7,184,603.88
  4. Step 4: Simplify right side
    12,985,916.62x = 128,755,950,278,262.67
  5. Step 5: Solve for x
    x = 128,755,950,278,262.67/12,985,916.62
  6. Step 6: Final answer
    x = 9,915,045.20

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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.