Home / 253,203,730.38-379,801,462.74-80,678,211.66

Finding the Fourth Proportional to 253,203,730.38, 379,801,462.74 and 80,678,211.66

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Solution

The fourth proportional to 253,203,730.38, 379,801,462.74 and 80,678,211.66 is: 121,016,000.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,203,730.38 : 379,801,462.74 = 80,678,211.66 : x
  2. Step 2: Convert to fraction form
    253,203,730.38/379,801,462.74 = 80,678,211.66/x
  3. Step 3: Cross multiply
    253,203,730.38x = 379,801,462.74 × 80,678,211.66
  4. Step 4: Simplify right side
    253,203,730.38x = 30,641,702,799,715,324
  5. Step 5: Solve for x
    x = 30,641,702,799,715,324/253,203,730.38
  6. Step 6: Final answer
    x = 121,016,000.65

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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.