Home / 12,979,995.48-17,917,909.13-8,087,634.88

Finding the Fourth Proportional to 12,979,995.48, 17,917,909.13 and 8,087,634.88

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Solution

The fourth proportional to 12,979,995.48, 17,917,909.13 and 8,087,634.88 is: 11,164,372.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,979,995.48 : 17,917,909.13 = 8,087,634.88 : x
  2. Step 2: Convert to fraction form
    12,979,995.48/17,917,909.13 = 8,087,634.88/x
  3. Step 3: Cross multiply
    12,979,995.48x = 17,917,909.13 × 8,087,634.88
  4. Step 4: Simplify right side
    12,979,995.48x = 144,913,506,831,882.78
  5. Step 5: Solve for x
    x = 144,913,506,831,882.78/12,979,995.48
  6. Step 6: Final answer
    x = 11,164,372.67

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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.