Home / 120,622,693.20-180,934,039.80-100,534,223.40

Finding the Fourth Proportional to 120,622,693.20, 180,934,039.80 and 100,534,223.40

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Solution

The fourth proportional to 120,622,693.20, 180,934,039.80 and 100,534,223.40 is: 150,801,335.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,622,693.20 : 180,934,039.80 = 100,534,223.40 : x
  2. Step 2: Convert to fraction form
    120,622,693.20/180,934,039.80 = 100,534,223.40/x
  3. Step 3: Cross multiply
    120,622,693.20x = 180,934,039.80 × 100,534,223.40
  4. Step 4: Simplify right side
    120,622,693.20x = 18,190,063,177,917,692
  5. Step 5: Solve for x
    x = 18,190,063,177,917,692/120,622,693.20
  6. Step 6: Final answer
    x = 150,801,335.10

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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.