Home / 121,293,648.40-181,940,472.60-108,192,643.60

Finding the Fourth Proportional to 121,293,648.40, 181,940,472.60 and 108,192,643.60

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Solution

The fourth proportional to 121,293,648.40, 181,940,472.60 and 108,192,643.60 is: 162,288,965.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,293,648.40 : 181,940,472.60 = 108,192,643.60 : x
  2. Step 2: Convert to fraction form
    121,293,648.40/181,940,472.60 = 108,192,643.60/x
  3. Step 3: Cross multiply
    121,293,648.40x = 181,940,472.60 × 108,192,643.60
  4. Step 4: Simplify right side
    121,293,648.40x = 19,684,620,708,427,364
  5. Step 5: Solve for x
    x = 19,684,620,708,427,364/121,293,648.40
  6. Step 6: Final answer
    x = 162,288,965.40

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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.