Home / 121,279,265.30-181,918,897.95-66,670,750.10

Finding the Fourth Proportional to 121,279,265.30, 181,918,897.95 and 66,670,750.10

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Solution

The fourth proportional to 121,279,265.30, 181,918,897.95 and 66,670,750.10 is: 100,006,125.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,279,265.30 : 181,918,897.95 = 66,670,750.10 : x
  2. Step 2: Convert to fraction form
    121,279,265.30/181,918,897.95 = 66,670,750.10/x
  3. Step 3: Cross multiply
    121,279,265.30x = 181,918,897.95 × 66,670,750.10
  4. Step 4: Simplify right side
    121,279,265.30x = 12,128,669,383,691,852
  5. Step 5: Solve for x
    x = 12,128,669,383,691,852/121,279,265.30
  6. Step 6: Final answer
    x = 100,006,125.15

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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.