Home / 91,859,445.20-137,647,450.20-79,671,731.60

Finding the Fourth Proportional to 91,859,445.20, 137,647,450.20 and 79,671,731.60

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Solution

The fourth proportional to 91,859,445.20, 137,647,450.20 and 79,671,731.60 is: 119,384,682.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,859,445.20 : 137,647,450.20 = 79,671,731.60 : x
  2. Step 2: Convert to fraction form
    91,859,445.20/137,647,450.20 = 79,671,731.60/x
  3. Step 3: Cross multiply
    91,859,445.20x = 137,647,450.20 × 79,671,731.60
  4. Step 4: Simplify right side
    91,859,445.20x = 10,966,610,707,758,764
  5. Step 5: Solve for x
    x = 10,966,610,707,758,764/91,859,445.20
  6. Step 6: Final answer
    x = 119,384,682.59

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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.