Home / 80,139,870.30-120,115,327.05-41,781,639.90

Finding the Fourth Proportional to 80,139,870.30, 120,115,327.05 and 41,781,639.90

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Solution

The fourth proportional to 80,139,870.30, 120,115,327.05 and 41,781,639.90 is: 62,623,202.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,139,870.30 : 120,115,327.05 = 41,781,639.90 : x
  2. Step 2: Convert to fraction form
    80,139,870.30/120,115,327.05 = 41,781,639.90/x
  3. Step 3: Cross multiply
    80,139,870.30x = 120,115,327.05 × 41,781,639.90
  4. Step 4: Simplify right side
    80,139,870.30x = 5,018,615,341,273,829
  5. Step 5: Solve for x
    x = 5,018,615,341,273,829/80,139,870.30
  6. Step 6: Final answer
    x = 62,623,202.69

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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.