Home / 144,146,466.96-198,921,138.57-78,065,445.48

Finding the Fourth Proportional to 144,146,466.96, 198,921,138.57 and 78,065,445.48

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Solution

The fourth proportional to 144,146,466.96, 198,921,138.57 and 78,065,445.48 is: 107,729,780.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,146,466.96 : 198,921,138.57 = 78,065,445.48 : x
  2. Step 2: Convert to fraction form
    144,146,466.96/198,921,138.57 = 78,065,445.48/x
  3. Step 3: Cross multiply
    144,146,466.96x = 198,921,138.57 × 78,065,445.48
  4. Step 4: Simplify right side
    144,146,466.96x = 15,528,867,297,855,860
  5. Step 5: Solve for x
    x = 15,528,867,297,855,860/144,146,466.96
  6. Step 6: Final answer
    x = 107,729,780.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.