Home / 431,569,501.40-647,354,252.10-158,883,843.80

Finding the Fourth Proportional to 431,569,501.40, 647,354,252.10 and 158,883,843.80

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Solution

The fourth proportional to 431,569,501.40, 647,354,252.10 and 158,883,843.80 is: 238,325,765.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,569,501.40 : 647,354,252.10 = 158,883,843.80 : x
  2. Step 2: Convert to fraction form
    431,569,501.40/647,354,252.10 = 158,883,843.80/x
  3. Step 3: Cross multiply
    431,569,501.40x = 647,354,252.10 × 158,883,843.80
  4. Step 4: Simplify right side
    431,569,501.40x = 102,854,131,873,922,240
  5. Step 5: Solve for x
    x = 102,854,131,873,922,240/431,569,501.40
  6. Step 6: Final answer
    x = 238,325,765.70

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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.