Home / 12,942,442.92-17,860,945.08-7,141,598.24

Finding the Fourth Proportional to 12,942,442.92, 17,860,945.08 and 7,141,598.24

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Solution

The fourth proportional to 12,942,442.92, 17,860,945.08 and 7,141,598.24 is: 9,855,611.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942,442.92 : 17,860,945.08 = 7,141,598.24 : x
  2. Step 2: Convert to fraction form
    12,942,442.92/17,860,945.08 = 7,141,598.24/x
  3. Step 3: Cross multiply
    12,942,442.92x = 17,860,945.08 × 7,141,598.24
  4. Step 4: Simplify right side
    12,942,442.92x = 127,555,693,948,064.66
  5. Step 5: Solve for x
    x = 127,555,693,948,064.66/12,942,442.92
  6. Step 6: Final answer
    x = 9,855,611.86

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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.