Home / 265,389,619.80-398,084,429.70-239,561,587.20

Finding the Fourth Proportional to 265,389,619.80, 398,084,429.70 and 239,561,587.20

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Solution

The fourth proportional to 265,389,619.80, 398,084,429.70 and 239,561,587.20 is: 359,342,380.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,389,619.80 : 398,084,429.70 = 239,561,587.20 : x
  2. Step 2: Convert to fraction form
    265,389,619.80/398,084,429.70 = 239,561,587.20/x
  3. Step 3: Cross multiply
    265,389,619.80x = 398,084,429.70 × 239,561,587.20
  4. Step 4: Simplify right side
    265,389,619.80x = 95,365,737,818,538,816
  5. Step 5: Solve for x
    x = 95,365,737,818,538,816/265,389,619.80
  6. Step 6: Final answer
    x = 359,342,380.80

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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.