Home / 80,295,543-120,182,732.10-43,356,081.72

Finding the Fourth Proportional to 80,295,543, 120,182,732.10 and 43,356,081.72

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Solution

The fourth proportional to 80,295,543, 120,182,732.10 and 43,356,081.72 is: 64,893,419.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,295,543 : 120,182,732.10 = 43,356,081.72 : x
  2. Step 2: Convert to fraction form
    80,295,543/120,182,732.10 = 43,356,081.72/x
  3. Step 3: Cross multiply
    80,295,543x = 120,182,732.10 × 43,356,081.72
  4. Step 4: Simplify right side
    80,295,543x = 5,210,652,354,260,467
  5. Step 5: Solve for x
    x = 5,210,652,354,260,467/80,295,543
  6. Step 6: Final answer
    x = 64,893,419.48

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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.