Home / 169,069,591.12-253,691,159.49-80,538,421.87

Finding the Fourth Proportional to 169,069,591.12, 253,691,159.49 and 80,538,421.87

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Solution

The fourth proportional to 169,069,591.12, 253,691,159.49 and 80,538,421.87 is: 120,848,968.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,069,591.12 : 253,691,159.49 = 80,538,421.87 : x
  2. Step 2: Convert to fraction form
    169,069,591.12/253,691,159.49 = 80,538,421.87/x
  3. Step 3: Cross multiply
    169,069,591.12x = 253,691,159.49 × 80,538,421.87
  4. Step 4: Simplify right side
    169,069,591.12x = 20,431,885,626,600,424
  5. Step 5: Solve for x
    x = 20,431,885,626,600,424/169,069,591.12
  6. Step 6: Final answer
    x = 120,848,968.12

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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.