Home / 80,648,561.90-120,939,491.70-25,297,934.55

Finding the Fourth Proportional to 80,648,561.90, 120,939,491.70 and 25,297,934.55

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Solution

The fourth proportional to 80,648,561.90, 120,939,491.70 and 25,297,934.55 is: 37,936,440.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,648,561.90 : 120,939,491.70 = 25,297,934.55 : x
  2. Step 2: Convert to fraction form
    80,648,561.90/120,939,491.70 = 25,297,934.55/x
  3. Step 3: Cross multiply
    80,648,561.90x = 120,939,491.70 × 25,297,934.55
  4. Step 4: Simplify right side
    80,648,561.90x = 3,059,519,346,121,541
  5. Step 5: Solve for x
    x = 3,059,519,346,121,541/80,648,561.90
  6. Step 6: Final answer
    x = 37,936,440.20

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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.