Home / 120,622,711.20-180,934,066.80-100,534,241.40

Finding the Fourth Proportional to 120,622,711.20, 180,934,066.80 and 100,534,241.40

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Solution

The fourth proportional to 120,622,711.20, 180,934,066.80 and 100,534,241.40 is: 150,801,362.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,622,711.20 : 180,934,066.80 = 100,534,241.40 : x
  2. Step 2: Convert to fraction form
    120,622,711.20/180,934,066.80 = 100,534,241.40/x
  3. Step 3: Cross multiply
    120,622,711.20x = 180,934,066.80 × 100,534,241.40
  4. Step 4: Simplify right side
    120,622,711.20x = 18,190,069,149,154,928
  5. Step 5: Solve for x
    x = 18,190,069,149,154,928/120,622,711.20
  6. Step 6: Final answer
    x = 150,801,362.10

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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.