Home / 121,250,999.70-181,876,499.55-111,897,638.10

Finding the Fourth Proportional to 121,250,999.70, 181,876,499.55 and 111,897,638.10

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Solution

The fourth proportional to 121,250,999.70, 181,876,499.55 and 111,897,638.10 is: 167,846,457.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,250,999.70 : 181,876,499.55 = 111,897,638.10 : x
  2. Step 2: Convert to fraction form
    121,250,999.70/181,876,499.55 = 111,897,638.10/x
  3. Step 3: Cross multiply
    121,250,999.70x = 181,876,499.55 × 111,897,638.10
  4. Step 4: Simplify right side
    121,250,999.70x = 20,351,550,725,540,712
  5. Step 5: Solve for x
    x = 20,351,550,725,540,712/121,250,999.70
  6. Step 6: Final answer
    x = 167,846,457.15

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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.