Home / 120,515,405.38-180,425,594.40-108,054,276.70

Finding the Fourth Proportional to 120,515,405.38, 180,425,594.40 and 108,054,276.70

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Solution

The fourth proportional to 120,515,405.38, 180,425,594.40 and 108,054,276.70 is: 161,769,833.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,515,405.38 : 180,425,594.40 = 108,054,276.70 : x
  2. Step 2: Convert to fraction form
    120,515,405.38/180,425,594.40 = 108,054,276.70/x
  3. Step 3: Cross multiply
    120,515,405.38x = 180,425,594.40 × 108,054,276.70
  4. Step 4: Simplify right side
    120,515,405.38x = 19,495,757,101,059,572
  5. Step 5: Solve for x
    x = 19,495,757,101,059,572/120,515,405.38
  6. Step 6: Final answer
    x = 161,769,833.82

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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.