Home / 279,856,020.20-419,784,030.30-268,518,612.20

Finding the Fourth Proportional to 279,856,020.20, 419,784,030.30 and 268,518,612.20

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Solution

The fourth proportional to 279,856,020.20, 419,784,030.30 and 268,518,612.20 is: 402,777,918.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,856,020.20 : 419,784,030.30 = 268,518,612.20 : x
  2. Step 2: Convert to fraction form
    279,856,020.20/419,784,030.30 = 268,518,612.20/x
  3. Step 3: Cross multiply
    279,856,020.20x = 419,784,030.30 × 268,518,612.20
  4. Step 4: Simplify right side
    279,856,020.20x = 112,719,825,239,878,752
  5. Step 5: Solve for x
    x = 112,719,825,239,878,752/279,856,020.20
  6. Step 6: Final answer
    x = 402,777,918.30

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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.