Home / 65,691,428.39-90,650,276.11-36,320,455.79

Finding the Fourth Proportional to 65,691,428.39, 90,650,276.11 and 36,320,455.79

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Solution

The fourth proportional to 65,691,428.39, 90,650,276.11 and 36,320,455.79 is: 50,120,075.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,691,428.39 : 90,650,276.11 = 36,320,455.79 : x
  2. Step 2: Convert to fraction form
    65,691,428.39/90,650,276.11 = 36,320,455.79/x
  3. Step 3: Cross multiply
    65,691,428.39x = 90,650,276.11 × 36,320,455.79
  4. Step 4: Simplify right side
    65,691,428.39x = 3,292,459,345,736,636
  5. Step 5: Solve for x
    x = 3,292,459,345,736,636/65,691,428.39
  6. Step 6: Final answer
    x = 50,120,075.43

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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.