Home / 121,279,230.30-181,918,845.45-66,670,715.10

Finding the Fourth Proportional to 121,279,230.30, 181,918,845.45 and 66,670,715.10

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Solution

The fourth proportional to 121,279,230.30, 181,918,845.45 and 66,670,715.10 is: 100,006,072.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,279,230.30 : 181,918,845.45 = 66,670,715.10 : x
  2. Step 2: Convert to fraction form
    121,279,230.30/181,918,845.45 = 66,670,715.10/x
  3. Step 3: Cross multiply
    121,279,230.30x = 181,918,845.45 × 66,670,715.10
  4. Step 4: Simplify right side
    121,279,230.30x = 12,128,659,516,317,880
  5. Step 5: Solve for x
    x = 12,128,659,516,317,880/121,279,230.30
  6. Step 6: Final answer
    x = 100,006,072.65

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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.