Home / 14,175,997.20-21,279,742.20-8,790,728.40

Finding the Fourth Proportional to 14,175,997.20, 21,279,742.20 and 8,790,728.40

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Solution

The fourth proportional to 14,175,997.20, 21,279,742.20 and 8,790,728.40 is: 13,195,857.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,175,997.20 : 21,279,742.20 = 8,790,728.40 : x
  2. Step 2: Convert to fraction form
    14,175,997.20/21,279,742.20 = 8,790,728.40/x
  3. Step 3: Cross multiply
    14,175,997.20x = 21,279,742.20 × 8,790,728.40
  4. Step 4: Simplify right side
    14,175,997.20x = 187,064,434,102,218.47
  5. Step 5: Solve for x
    x = 187,064,434,102,218.47/14,175,997.20
  6. Step 6: Final answer
    x = 13,195,857.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.