Home / 12,960,378.57-17,885,865.42-7,453,757.16

Finding the Fourth Proportional to 12,960,378.57, 17,885,865.42 and 7,453,757.16

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Solution

The fourth proportional to 12,960,378.57, 17,885,865.42 and 7,453,757.16 is: 10,286,497.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960,378.57 : 17,885,865.42 = 7,453,757.16 : x
  2. Step 2: Convert to fraction form
    12,960,378.57/17,885,865.42 = 7,453,757.16/x
  3. Step 3: Cross multiply
    12,960,378.57x = 17,885,865.42 × 7,453,757.16
  4. Step 4: Simplify right side
    12,960,378.57x = 133,316,897,437,121.42
  5. Step 5: Solve for x
    x = 133,316,897,437,121.42/12,960,378.57
  6. Step 6: Final answer
    x = 10,286,497.17

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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.