Home / 408,259,139.20-612,388,708.80-236,072,255.20

Finding the Fourth Proportional to 408,259,139.20, 612,388,708.80 and 236,072,255.20

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Solution

The fourth proportional to 408,259,139.20, 612,388,708.80 and 236,072,255.20 is: 354,108,382.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,259,139.20 : 612,388,708.80 = 236,072,255.20 : x
  2. Step 2: Convert to fraction form
    408,259,139.20/612,388,708.80 = 236,072,255.20/x
  3. Step 3: Cross multiply
    408,259,139.20x = 612,388,708.80 × 236,072,255.20
  4. Step 4: Simplify right side
    408,259,139.20x = 144,567,983,545,432,064
  5. Step 5: Solve for x
    x = 144,567,983,545,432,064/408,259,139.20
  6. Step 6: Final answer
    x = 354,108,382.80

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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.