Home / 312,040,801.20-468,061,201.80-158,985,793.20

Finding the Fourth Proportional to 312,040,801.20, 468,061,201.80 and 158,985,793.20

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Solution

The fourth proportional to 312,040,801.20, 468,061,201.80 and 158,985,793.20 is: 238,478,689.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,040,801.20 : 468,061,201.80 = 158,985,793.20 : x
  2. Step 2: Convert to fraction form
    312,040,801.20/468,061,201.80 = 158,985,793.20/x
  3. Step 3: Cross multiply
    312,040,801.20x = 468,061,201.80 × 158,985,793.20
  4. Step 4: Simplify right side
    312,040,801.20x = 74,415,081,434,318,272
  5. Step 5: Solve for x
    x = 74,415,081,434,318,272/312,040,801.20
  6. Step 6: Final answer
    x = 238,478,689.80

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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.