Home / 256,561,851.20-384,394,879.20-220,730,043.20

Finding the Fourth Proportional to 256,561,851.20, 384,394,879.20 and 220,730,043.20

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Solution

The fourth proportional to 256,561,851.20, 384,394,879.20 and 220,730,043.20 is: 330,709,721.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,561,851.20 : 384,394,879.20 = 220,730,043.20 : x
  2. Step 2: Convert to fraction form
    256,561,851.20/384,394,879.20 = 220,730,043.20/x
  3. Step 3: Cross multiply
    256,561,851.20x = 384,394,879.20 × 220,730,043.20
  4. Step 4: Simplify right side
    256,561,851.20x = 84,847,498,291,674,768
  5. Step 5: Solve for x
    x = 84,847,498,291,674,768/256,561,851.20
  6. Step 6: Final answer
    x = 330,709,721.24

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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.