Home / 20,148,115.80-30,219,221.25-9,910,227.52

Finding the Fourth Proportional to 20,148,115.80, 30,219,221.25 and 9,910,227.52

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Solution

The fourth proportional to 20,148,115.80, 30,219,221.25 and 9,910,227.52 is: 14,863,889.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148,115.80 : 30,219,221.25 = 9,910,227.52 : x
  2. Step 2: Convert to fraction form
    20,148,115.80/30,219,221.25 = 9,910,227.52/x
  3. Step 3: Cross multiply
    20,148,115.80x = 30,219,221.25 × 9,910,227.52
  4. Step 4: Simplify right side
    20,148,115.80x = 299,479,358,064,718.81
  5. Step 5: Solve for x
    x = 299,479,358,064,718.81/20,148,115.80
  6. Step 6: Final answer
    x = 14,863,889.06

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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.