Home / 120,511,139.85-180,615,414.74-65,176,770.69

Finding the Fourth Proportional to 120,511,139.85, 180,615,414.74 and 65,176,770.69

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Solution

The fourth proportional to 120,511,139.85, 180,615,414.74 and 65,176,770.69 is: 97,683,330.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,511,139.85 : 180,615,414.74 = 65,176,770.69 : x
  2. Step 2: Convert to fraction form
    120,511,139.85/180,615,414.74 = 65,176,770.69/x
  3. Step 3: Cross multiply
    120,511,139.85x = 180,615,414.74 × 65,176,770.69
  4. Step 4: Simplify right side
    120,511,139.85x = 11,771,929,469,262,342
  5. Step 5: Solve for x
    x = 11,771,929,469,262,342/120,511,139.85
  6. Step 6: Final answer
    x = 97,683,330.22

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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.