Home / 121,279,333.30-181,918,999.95-66,670,818.10

Finding the Fourth Proportional to 121,279,333.30, 181,918,999.95 and 66,670,818.10

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Solution

The fourth proportional to 121,279,333.30, 181,918,999.95 and 66,670,818.10 is: 100,006,227.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,279,333.30 : 181,918,999.95 = 66,670,818.10 : x
  2. Step 2: Convert to fraction form
    121,279,333.30/181,918,999.95 = 66,670,818.10/x
  3. Step 3: Cross multiply
    121,279,333.30x = 181,918,999.95 × 66,670,818.10
  4. Step 4: Simplify right side
    121,279,333.30x = 12,128,688,554,600,358
  5. Step 5: Solve for x
    x = 12,128,688,554,600,358/121,279,333.30
  6. Step 6: Final answer
    x = 100,006,227.15

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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.