Home / 145,307,149.34-218,062,879.38-131,414,492.75

Finding the Fourth Proportional to 145,307,149.34, 218,062,879.38 and 131,414,492.75

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Solution

The fourth proportional to 145,307,149.34, 218,062,879.38 and 131,414,492.75 is: 197,214,127.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,307,149.34 : 218,062,879.38 = 131,414,492.75 : x
  2. Step 2: Convert to fraction form
    145,307,149.34/218,062,879.38 = 131,414,492.75/x
  3. Step 3: Cross multiply
    145,307,149.34x = 218,062,879.38 × 131,414,492.75
  4. Step 4: Simplify right side
    145,307,149.34x = 28,656,622,680,236,820
  5. Step 5: Solve for x
    x = 28,656,622,680,236,820/145,307,149.34
  6. Step 6: Final answer
    x = 197,214,127.53

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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.