Home / 155,520,072.70-233,280,109.05-87,364,987.90

Finding the Fourth Proportional to 155,520,072.70, 233,280,109.05 and 87,364,987.90

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Solution

The fourth proportional to 155,520,072.70, 233,280,109.05 and 87,364,987.90 is: 131,047,481.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,520,072.70 : 233,280,109.05 = 87,364,987.90 : x
  2. Step 2: Convert to fraction form
    155,520,072.70/233,280,109.05 = 87,364,987.90/x
  3. Step 3: Cross multiply
    155,520,072.70x = 233,280,109.05 × 87,364,987.90
  4. Step 4: Simplify right side
    155,520,072.70x = 20,380,513,904,463,932
  5. Step 5: Solve for x
    x = 20,380,513,904,463,932/155,520,072.70
  6. Step 6: Final answer
    x = 131,047,481.85

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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.