Home / 431,215,286.40-646,822,929.60-158,529,628.80

Finding the Fourth Proportional to 431,215,286.40, 646,822,929.60 and 158,529,628.80

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Solution

The fourth proportional to 431,215,286.40, 646,822,929.60 and 158,529,628.80 is: 237,794,443.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,215,286.40 : 646,822,929.60 = 158,529,628.80 : x
  2. Step 2: Convert to fraction form
    431,215,286.40/646,822,929.60 = 158,529,628.80/x
  3. Step 3: Cross multiply
    431,215,286.40x = 646,822,929.60 × 158,529,628.80
  4. Step 4: Simplify right side
    431,215,286.40x = 102,540,598,928,816,544
  5. Step 5: Solve for x
    x = 102,540,598,928,816,544/431,215,286.40
  6. Step 6: Final answer
    x = 237,794,443.20

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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.