Home / 76,614,689.28-114,900,770.88-21,269,809.92

Finding the Fourth Proportional to 76,614,689.28, 114,900,770.88 and 21,269,809.92

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Solution

The fourth proportional to 76,614,689.28, 114,900,770.88 and 21,269,809.92 is: 31,898,811.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,614,689.28 : 114,900,770.88 = 21,269,809.92 : x
  2. Step 2: Convert to fraction form
    76,614,689.28/114,900,770.88 = 21,269,809.92/x
  3. Step 3: Cross multiply
    76,614,689.28x = 114,900,770.88 × 21,269,809.92
  4. Step 4: Simplify right side
    76,614,689.28x = 2,443,917,556,279,071
  5. Step 5: Solve for x
    x = 2,443,917,556,279,071/76,614,689.28
  6. Step 6: Final answer
    x = 31,898,811.82

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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.