Home / 198,234,017.60-297,351,026.40-120,749,919.80

Finding the Fourth Proportional to 198,234,017.60, 297,351,026.40 and 120,749,919.80

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Solution

The fourth proportional to 198,234,017.60, 297,351,026.40 and 120,749,919.80 is: 181,124,879.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,234,017.60 : 297,351,026.40 = 120,749,919.80 : x
  2. Step 2: Convert to fraction form
    198,234,017.60/297,351,026.40 = 120,749,919.80/x
  3. Step 3: Cross multiply
    198,234,017.60x = 297,351,026.40 × 120,749,919.80
  4. Step 4: Simplify right side
    198,234,017.60x = 35,905,112,590,247,680
  5. Step 5: Solve for x
    x = 35,905,112,590,247,680/198,234,017.60
  6. Step 6: Final answer
    x = 181,124,879.70

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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.