Home / 123,253,567.20-170,087,839.20-68,248,242.72

Finding the Fourth Proportional to 123,253,567.20, 170,087,839.20 and 68,248,242.72

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Solution

The fourth proportional to 123,253,567.20, 170,087,839.20 and 68,248,242.72 is: 94,181,421.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,253,567.20 : 170,087,839.20 = 68,248,242.72 : x
  2. Step 2: Convert to fraction form
    123,253,567.20/170,087,839.20 = 68,248,242.72/x
  3. Step 3: Cross multiply
    123,253,567.20x = 170,087,839.20 × 68,248,242.72
  4. Step 4: Simplify right side
    123,253,567.20x = 11,608,196,133,441,930
  5. Step 5: Solve for x
    x = 11,608,196,133,441,930/123,253,567.20
  6. Step 6: Final answer
    x = 94,181,421.25

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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.