Home / 80,923,920.40-121,343,890.20-29,779,613.20

Finding the Fourth Proportional to 80,923,920.40, 121,343,890.20 and 29,779,613.20

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Solution

The fourth proportional to 80,923,920.40, 121,343,890.20 and 29,779,613.20 is: 44,653,967.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,923,920.40 : 121,343,890.20 = 29,779,613.20 : x
  2. Step 2: Convert to fraction form
    80,923,920.40/121,343,890.20 = 29,779,613.20/x
  3. Step 3: Cross multiply
    80,923,920.40x = 121,343,890.20 × 29,779,613.20
  4. Step 4: Simplify right side
    80,923,920.40x = 3,613,574,114,339,270.50
  5. Step 5: Solve for x
    x = 3,613,574,114,339,270.50/80,923,920.40
  6. Step 6: Final answer
    x = 44,653,967.53

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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.