Home / 81,465,937.20-122,104,427.40-32,911,912.80

Finding the Fourth Proportional to 81,465,937.20, 122,104,427.40 and 32,911,912.80

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Solution

The fourth proportional to 81,465,937.20, 122,104,427.40 and 32,911,912.80 is: 49,329,700.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,465,937.20 : 122,104,427.40 = 32,911,912.80 : x
  2. Step 2: Convert to fraction form
    81,465,937.20/122,104,427.40 = 32,911,912.80/x
  3. Step 3: Cross multiply
    81,465,937.20x = 122,104,427.40 × 32,911,912.80
  4. Step 4: Simplify right side
    81,465,937.20x = 4,018,690,267,082,731
  5. Step 5: Solve for x
    x = 4,018,690,267,082,731/81,465,937.20
  6. Step 6: Final answer
    x = 49,329,700.30

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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.