Home / 12,960,388.32-17,885,878.90-7,453,766.92

Finding the Fourth Proportional to 12,960,388.32, 17,885,878.90 and 7,453,766.92

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Solution

The fourth proportional to 12,960,388.32, 17,885,878.90 and 7,453,766.92 is: 10,286,510.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960,388.32 : 17,885,878.90 = 7,453,766.92 : x
  2. Step 2: Convert to fraction form
    12,960,388.32/17,885,878.90 = 7,453,766.92/x
  3. Step 3: Cross multiply
    12,960,388.32x = 17,885,878.90 × 7,453,766.92
  4. Step 4: Simplify right side
    12,960,388.32x = 133,317,172,479,945.97
  5. Step 5: Solve for x
    x = 133,317,172,479,945.97/12,960,388.32
  6. Step 6: Final answer
    x = 10,286,510.65

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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.