Home / 121,279,588.80-181,919,383.20-66,671,073.60

Finding the Fourth Proportional to 121,279,588.80, 181,919,383.20 and 66,671,073.60

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Solution

The fourth proportional to 121,279,588.80, 181,919,383.20 and 66,671,073.60 is: 100,006,610.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,279,588.80 : 181,919,383.20 = 66,671,073.60 : x
  2. Step 2: Convert to fraction form
    121,279,588.80/181,919,383.20 = 66,671,073.60/x
  3. Step 3: Cross multiply
    121,279,588.80x = 181,919,383.20 × 66,671,073.60
  4. Step 4: Simplify right side
    121,279,588.80x = 12,128,760,586,593,802
  5. Step 5: Solve for x
    x = 12,128,760,586,593,802/121,279,588.80
  6. Step 6: Final answer
    x = 100,006,610.40

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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.