Home / 76,801,891.20-115,202,947.65-31,363,685.70

Finding the Fourth Proportional to 76,801,891.20, 115,202,947.65 and 31,363,685.70

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Solution

The fourth proportional to 76,801,891.20, 115,202,947.65 and 31,363,685.70 is: 47,045,573.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,801,891.20 : 115,202,947.65 = 31,363,685.70 : x
  2. Step 2: Convert to fraction form
    76,801,891.20/115,202,947.65 = 31,363,685.70/x
  3. Step 3: Cross multiply
    76,801,891.20x = 115,202,947.65 × 31,363,685.70
  4. Step 4: Simplify right side
    76,801,891.20x = 3,613,189,041,808,153.50
  5. Step 5: Solve for x
    x = 3,613,189,041,808,153.50/76,801,891.20
  6. Step 6: Final answer
    x = 47,045,573.82

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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.