Home / 121,212,002.40-181,818,003.60-30,335,445.60

Finding the Fourth Proportional to 121,212,002.40, 181,818,003.60 and 30,335,445.60

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Solution

The fourth proportional to 121,212,002.40, 181,818,003.60 and 30,335,445.60 is: 45,503,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,212,002.40 : 181,818,003.60 = 30,335,445.60 : x
  2. Step 2: Convert to fraction form
    121,212,002.40/181,818,003.60 = 30,335,445.60/x
  3. Step 3: Cross multiply
    121,212,002.40x = 181,818,003.60 × 30,335,445.60
  4. Step 4: Simplify right side
    121,212,002.40x = 5,515,530,157,308,404
  5. Step 5: Solve for x
    x = 5,515,530,157,308,404/121,212,002.40
  6. Step 6: Final answer
    x = 45,503,168.40

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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.