Home / 65,691,430.90-90,650,279.56-36,320,458.30

Finding the Fourth Proportional to 65,691,430.90, 90,650,279.56 and 36,320,458.30

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Solution

The fourth proportional to 65,691,430.90, 90,650,279.56 and 36,320,458.30 is: 50,120,078.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,691,430.90 : 90,650,279.56 = 36,320,458.30 : x
  2. Step 2: Convert to fraction form
    65,691,430.90/90,650,279.56 = 36,320,458.30/x
  3. Step 3: Cross multiply
    65,691,430.90x = 90,650,279.56 × 36,320,458.30
  4. Step 4: Simplify right side
    65,691,430.90x = 3,292,459,698,642,322
  5. Step 5: Solve for x
    x = 3,292,459,698,642,322/65,691,430.90
  6. Step 6: Final answer
    x = 50,120,078.88

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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.