Home / 51,988,499.70-78,150,711.15-47,957,421.30

Finding the Fourth Proportional to 51,988,499.70, 78,150,711.15 and 47,957,421.30

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Solution

The fourth proportional to 51,988,499.70, 78,150,711.15 and 47,957,421.30 is: 72,091,070.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,988,499.70 : 78,150,711.15 = 47,957,421.30 : x
  2. Step 2: Convert to fraction form
    51,988,499.70/78,150,711.15 = 47,957,421.30/x
  3. Step 3: Cross multiply
    51,988,499.70x = 78,150,711.15 × 47,957,421.30
  4. Step 4: Simplify right side
    51,988,499.70x = 3,747,906,579,515,157.50
  5. Step 5: Solve for x
    x = 3,747,906,579,515,157.50/51,988,499.70
  6. Step 6: Final answer
    x = 72,091,070.16

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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.