Home / 51,988,399.20-78,150,560.40-47,957,320.80

Finding the Fourth Proportional to 51,988,399.20, 78,150,560.40 and 47,957,320.80

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Solution

The fourth proportional to 51,988,399.20, 78,150,560.40 and 47,957,320.80 is: 72,090,919.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,988,399.20 : 78,150,560.40 = 47,957,320.80 : x
  2. Step 2: Convert to fraction form
    51,988,399.20/78,150,560.40 = 47,957,320.80/x
  3. Step 3: Cross multiply
    51,988,399.20x = 78,150,560.40 × 47,957,320.80
  4. Step 4: Simplify right side
    51,988,399.20x = 3,747,891,495,802,576.50
  5. Step 5: Solve for x
    x = 3,747,891,495,802,576.50/51,988,399.20
  6. Step 6: Final answer
    x = 72,090,919.39

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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.