Home / 12,124,713.80-18,187,070.70-11,008,687.70

Finding the Fourth Proportional to 12,124,713.80, 18,187,070.70 and 11,008,687.70

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Solution

The fourth proportional to 12,124,713.80, 18,187,070.70 and 11,008,687.70 is: 16,513,031.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124,713.80 : 18,187,070.70 = 11,008,687.70 : x
  2. Step 2: Convert to fraction form
    12,124,713.80/18,187,070.70 = 11,008,687.70/x
  3. Step 3: Cross multiply
    12,124,713.80x = 18,187,070.70 × 11,008,687.70
  4. Step 4: Simplify right side
    12,124,713.80x = 200,215,781,514,120.38
  5. Step 5: Solve for x
    x = 200,215,781,514,120.38/12,124,713.80
  6. Step 6: Final answer
    x = 16,513,031.55

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1.5x scale

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.