Home / 12,687,057.88-17,508,307.84-6,885,909.16

Finding the Fourth Proportional to 12,687,057.88, 17,508,307.84 and 6,885,909.16

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Solution

The fourth proportional to 12,687,057.88, 17,508,307.84 and 6,885,909.16 is: 9,502,645.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,057.88 : 17,508,307.84 = 6,885,909.16 : x
  2. Step 2: Convert to fraction form
    12,687,057.88/17,508,307.84 = 6,885,909.16/x
  3. Step 3: Cross multiply
    12,687,057.88x = 17,508,307.84 × 6,885,909.16
  4. Step 4: Simplify right side
    12,687,057.88x = 120,560,617,407,787.75
  5. Step 5: Solve for x
    x = 120,560,617,407,787.75/12,687,057.88
  6. Step 6: Final answer
    x = 9,502,645.81

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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.