Home / 21,278,086.40-31,926,404.10-7,454,961.74

Finding the Fourth Proportional to 21,278,086.40, 31,926,404.10 and 7,454,961.74

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Solution

The fourth proportional to 21,278,086.40, 31,926,404.10 and 7,454,961.74 is: 11,185,692.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,278,086.40 : 31,926,404.10 = 7,454,961.74 : x
  2. Step 2: Convert to fraction form
    21,278,086.40/31,926,404.10 = 7,454,961.74/x
  3. Step 3: Cross multiply
    21,278,086.40x = 31,926,404.10 × 7,454,961.74
  4. Step 4: Simplify right side
    21,278,086.40x = 238,010,121,061,279.16
  5. Step 5: Solve for x
    x = 238,010,121,061,279.16/21,278,086.40
  6. Step 6: Final answer
    x = 11,185,692.01

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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.