Home / 169,490,018.40-254,268,205.20-72,445,538.40

Finding the Fourth Proportional to 169,490,018.40, 254,268,205.20 and 72,445,538.40

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Solution

The fourth proportional to 169,490,018.40, 254,268,205.20 and 72,445,538.40 is: 108,682,488.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,490,018.40 : 254,268,205.20 = 72,445,538.40 : x
  2. Step 2: Convert to fraction form
    169,490,018.40/254,268,205.20 = 72,445,538.40/x
  3. Step 3: Cross multiply
    169,490,018.40x = 254,268,205.20 × 72,445,538.40
  4. Step 4: Simplify right side
    169,490,018.40x = 18,420,597,023,715,680
  5. Step 5: Solve for x
    x = 18,420,597,023,715,680/169,490,018.40
  6. Step 6: Final answer
    x = 108,682,488.78

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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.