Home / 20,381,367.24-28,127,060.40-11,681,218.80

Finding the Fourth Proportional to 20,381,367.24, 28,127,060.40 and 11,681,218.80

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Solution

The fourth proportional to 20,381,367.24, 28,127,060.40 and 11,681,218.80 is: 16,120,525.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,381,367.24 : 28,127,060.40 = 11,681,218.80 : x
  2. Step 2: Convert to fraction form
    20,381,367.24/28,127,060.40 = 11,681,218.80/x
  3. Step 3: Cross multiply
    20,381,367.24x = 28,127,060.40 × 11,681,218.80
  4. Step 4: Simplify right side
    20,381,367.24x = 328,558,346,733,215.50
  5. Step 5: Solve for x
    x = 328,558,346,733,215.50/20,381,367.24
  6. Step 6: Final answer
    x = 16,120,525.32

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1.5x scale

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.