Home / 121,456,913.40-182,185,370.10-109,741,591.80

Finding the Fourth Proportional to 121,456,913.40, 182,185,370.10 and 109,741,591.80

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Solution

The fourth proportional to 121,456,913.40, 182,185,370.10 and 109,741,591.80 is: 164,612,387.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,456,913.40 : 182,185,370.10 = 109,741,591.80 : x
  2. Step 2: Convert to fraction form
    121,456,913.40/182,185,370.10 = 109,741,591.80/x
  3. Step 3: Cross multiply
    121,456,913.40x = 182,185,370.10 × 109,741,591.80
  4. Step 4: Simplify right side
    121,456,913.40x = 19,993,312,517,446,124
  5. Step 5: Solve for x
    x = 19,993,312,517,446,124/121,456,913.40
  6. Step 6: Final answer
    x = 164,612,387.70

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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.