Home / 76,614,647.28-114,900,707.88-21,269,767.92

Finding the Fourth Proportional to 76,614,647.28, 114,900,707.88 and 21,269,767.92

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Solution

The fourth proportional to 76,614,647.28, 114,900,707.88 and 21,269,767.92 is: 31,898,748.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,614,647.28 : 114,900,707.88 = 21,269,767.92 : x
  2. Step 2: Convert to fraction form
    76,614,647.28/114,900,707.88 = 21,269,767.92/x
  3. Step 3: Cross multiply
    76,614,647.28x = 114,900,707.88 × 21,269,767.92
  4. Step 4: Simplify right side
    76,614,647.28x = 2,443,911,390,451,315.50
  5. Step 5: Solve for x
    x = 2,443,911,390,451,315.50/76,614,647.28
  6. Step 6: Final answer
    x = 31,898,748.83

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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.