Home / 420,561,340.20-630,842,010.30-239,162,812.20

Finding the Fourth Proportional to 420,561,340.20, 630,842,010.30 and 239,162,812.20

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Solution

The fourth proportional to 420,561,340.20, 630,842,010.30 and 239,162,812.20 is: 358,744,218.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,561,340.20 : 630,842,010.30 = 239,162,812.20 : x
  2. Step 2: Convert to fraction form
    420,561,340.20/630,842,010.30 = 239,162,812.20/x
  3. Step 3: Cross multiply
    420,561,340.20x = 630,842,010.30 × 239,162,812.20
  4. Step 4: Simplify right side
    420,561,340.20x = 150,873,949,237,249,344
  5. Step 5: Solve for x
    x = 150,873,949,237,249,344/420,561,340.20
  6. Step 6: Final answer
    x = 358,744,218.30

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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.