Home / 120,515,404.38-180,425,592.90-108,054,275.70

Finding the Fourth Proportional to 120,515,404.38, 180,425,592.90 and 108,054,275.70

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Solution

The fourth proportional to 120,515,404.38, 180,425,592.90 and 108,054,275.70 is: 161,769,832.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,515,404.38 : 180,425,592.90 = 108,054,275.70 : x
  2. Step 2: Convert to fraction form
    120,515,404.38/180,425,592.90 = 108,054,275.70/x
  3. Step 3: Cross multiply
    120,515,404.38x = 180,425,592.90 × 108,054,275.70
  4. Step 4: Simplify right side
    120,515,404.38x = 19,495,756,758,552,564
  5. Step 5: Solve for x
    x = 19,495,756,758,552,564/120,515,404.38
  6. Step 6: Final answer
    x = 161,769,832.32

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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.