Home / 121,127,363.70-181,691,045.55-111,774,002.10

Finding the Fourth Proportional to 121,127,363.70, 181,691,045.55 and 111,774,002.10

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Solution

The fourth proportional to 121,127,363.70, 181,691,045.55 and 111,774,002.10 is: 167,661,003.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,127,363.70 : 181,691,045.55 = 111,774,002.10 : x
  2. Step 2: Convert to fraction form
    121,127,363.70/181,691,045.55 = 111,774,002.10/x
  3. Step 3: Cross multiply
    121,127,363.70x = 181,691,045.55 × 111,774,002.10
  4. Step 4: Simplify right side
    121,127,363.70x = 20,308,335,306,856,896
  5. Step 5: Solve for x
    x = 20,308,335,306,856,896/121,127,363.70
  6. Step 6: Final answer
    x = 167,661,003.15

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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.