Home / 431,569,572.40-647,354,358.60-158,883,914.80

Finding the Fourth Proportional to 431,569,572.40, 647,354,358.60 and 158,883,914.80

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Solution

The fourth proportional to 431,569,572.40, 647,354,358.60 and 158,883,914.80 is: 238,325,872.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,569,572.40 : 647,354,358.60 = 158,883,914.80 : x
  2. Step 2: Convert to fraction form
    431,569,572.40/647,354,358.60 = 158,883,914.80/x
  3. Step 3: Cross multiply
    431,569,572.40x = 647,354,358.60 × 158,883,914.80
  4. Step 4: Simplify right side
    431,569,572.40x = 102,854,194,757,211,056
  5. Step 5: Solve for x
    x = 102,854,194,757,211,056/431,569,572.40
  6. Step 6: Final answer
    x = 238,325,872.20

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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.