Home / 120,576,820.80-180,876,290.40-39,797,966.40

Finding the Fourth Proportional to 120,576,820.80, 180,876,290.40 and 39,797,966.40

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Solution

The fourth proportional to 120,576,820.80, 180,876,290.40 and 39,797,966.40 is: 59,700,599.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,576,820.80 : 180,876,290.40 = 39,797,966.40 : x
  2. Step 2: Convert to fraction form
    120,576,820.80/180,876,290.40 = 39,797,966.40/x
  3. Step 3: Cross multiply
    120,576,820.80x = 180,876,290.40 × 39,797,966.40
  4. Step 4: Simplify right side
    120,576,820.80x = 7,198,508,527,895,843
  5. Step 5: Solve for x
    x = 7,198,508,527,895,843/120,576,820.80
  6. Step 6: Final answer
    x = 59,700,599.83

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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.