Home / 129,353,375.20-194,030,062.80-120,000,013.60

Finding the Fourth Proportional to 129,353,375.20, 194,030,062.80 and 120,000,013.60

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Solution

The fourth proportional to 129,353,375.20, 194,030,062.80 and 120,000,013.60 is: 180,000,020.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,353,375.20 : 194,030,062.80 = 120,000,013.60 : x
  2. Step 2: Convert to fraction form
    129,353,375.20/194,030,062.80 = 120,000,013.60/x
  3. Step 3: Cross multiply
    129,353,375.20x = 194,030,062.80 × 120,000,013.60
  4. Step 4: Simplify right side
    129,353,375.20x = 23,283,610,174,808,856
  5. Step 5: Solve for x
    x = 23,283,610,174,808,856/129,353,375.20
  6. Step 6: Final answer
    x = 180,000,020.40

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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.