Home / 84,770,830.80-127,156,246.20-20,945,422.80

Finding the Fourth Proportional to 84,770,830.80, 127,156,246.20 and 20,945,422.80

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Solution

The fourth proportional to 84,770,830.80, 127,156,246.20 and 20,945,422.80 is: 31,418,134.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,770,830.80 : 127,156,246.20 = 20,945,422.80 : x
  2. Step 2: Convert to fraction form
    84,770,830.80/127,156,246.20 = 20,945,422.80/x
  3. Step 3: Cross multiply
    84,770,830.80x = 127,156,246.20 × 20,945,422.80
  4. Step 4: Simplify right side
    84,770,830.80x = 2,663,341,338,319,893.50
  5. Step 5: Solve for x
    x = 2,663,341,338,319,893.50/84,770,830.80
  6. Step 6: Final answer
    x = 31,418,134.20

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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.