Home / 65,511,212.01-90,404,849.12-36,142,781.80

Finding the Fourth Proportional to 65,511,212.01, 90,404,849.12 and 36,142,781.80

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Solution

The fourth proportional to 65,511,212.01, 90,404,849.12 and 36,142,781.80 is: 49,876,694.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,511,212.01 : 90,404,849.12 = 36,142,781.80 : x
  2. Step 2: Convert to fraction form
    65,511,212.01/90,404,849.12 = 36,142,781.80/x
  3. Step 3: Cross multiply
    65,511,212.01x = 90,404,849.12 × 36,142,781.80
  4. Step 4: Simplify right side
    65,511,212.01x = 3,267,482,735,549,821
  5. Step 5: Solve for x
    x = 3,267,482,735,549,821/65,511,212.01
  6. Step 6: Final answer
    x = 49,876,694.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.