Home / 12,974,158.92-17,904,713.28-7,173,315.36

Finding the Fourth Proportional to 12,974,158.92, 17,904,713.28 and 7,173,315.36

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Solution

The fourth proportional to 12,974,158.92, 17,904,713.28 and 7,173,315.36 is: 9,899,381.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,974,158.92 : 17,904,713.28 = 7,173,315.36 : x
  2. Step 2: Convert to fraction form
    12,974,158.92/17,904,713.28 = 7,173,315.36/x
  3. Step 3: Cross multiply
    12,974,158.92x = 17,904,713.28 × 7,173,315.36
  4. Step 4: Simplify right side
    12,974,158.92x = 128,436,154,787,820
  5. Step 5: Solve for x
    x = 128,436,154,787,820/12,974,158.92
  6. Step 6: Final answer
    x = 9,899,381.96

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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.