Home / 76,781,542.20-105,394,515.51-67,884,826.20

Finding the Fourth Proportional to 76,781,542.20, 105,394,515.51 and 67,884,826.20

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Solution

The fourth proportional to 76,781,542.20, 105,394,515.51 and 67,884,826.20 is: 93,182,399.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,781,542.20 : 105,394,515.51 = 67,884,826.20 : x
  2. Step 2: Convert to fraction form
    76,781,542.20/105,394,515.51 = 67,884,826.20/x
  3. Step 3: Cross multiply
    76,781,542.20x = 105,394,515.51 × 67,884,826.20
  4. Step 4: Simplify right side
    76,781,542.20x = 7,154,688,367,829,555
  5. Step 5: Solve for x
    x = 7,154,688,367,829,555/76,781,542.20
  6. Step 6: Final answer
    x = 93,182,399.87

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.