Home / 121,811,267.05-168,055,382.33-80,017,836.47

Finding the Fourth Proportional to 121,811,267.05, 168,055,382.33 and 80,017,836.47

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Solution

The fourth proportional to 121,811,267.05, 168,055,382.33 and 80,017,836.47 is: 110,395,601.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,811,267.05 : 168,055,382.33 = 80,017,836.47 : x
  2. Step 2: Convert to fraction form
    121,811,267.05/168,055,382.33 = 80,017,836.47/x
  3. Step 3: Cross multiply
    121,811,267.05x = 168,055,382.33 × 80,017,836.47
  4. Step 4: Simplify right side
    121,811,267.05x = 13,447,428,099,944,902
  5. Step 5: Solve for x
    x = 13,447,428,099,944,902/121,811,267.05
  6. Step 6: Final answer
    x = 110,395,601.54

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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.