Home / 14,939,872.20-20,616,743.70-9,138,227.76

Finding the Fourth Proportional to 14,939,872.20, 20,616,743.70 and 9,138,227.76

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Solution

The fourth proportional to 14,939,872.20, 20,616,743.70 and 9,138,227.76 is: 12,610,583.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,939,872.20 : 20,616,743.70 = 9,138,227.76 : x
  2. Step 2: Convert to fraction form
    14,939,872.20/20,616,743.70 = 9,138,227.76/x
  3. Step 3: Cross multiply
    14,939,872.20x = 20,616,743.70 × 9,138,227.76
  4. Step 4: Simplify right side
    14,939,872.20x = 188,400,499,600,145.09
  5. Step 5: Solve for x
    x = 188,400,499,600,145.09/14,939,872.20
  6. Step 6: Final answer
    x = 12,610,583.08

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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.