Home / 80,790,211.70-121,364,678.28-50,107,465.52

Finding the Fourth Proportional to 80,790,211.70, 121,364,678.28 and 50,107,465.52

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Solution

The fourth proportional to 80,790,211.70, 121,364,678.28 and 50,107,465.52 is: 75,272,440.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,790,211.70 : 121,364,678.28 = 50,107,465.52 : x
  2. Step 2: Convert to fraction form
    80,790,211.70/121,364,678.28 = 50,107,465.52/x
  3. Step 3: Cross multiply
    80,790,211.70x = 121,364,678.28 × 50,107,465.52
  4. Step 4: Simplify right side
    80,790,211.70x = 6,081,276,432,260,993
  5. Step 5: Solve for x
    x = 6,081,276,432,260,993/80,790,211.70
  6. Step 6: Final answer
    x = 75,272,440.86

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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.