Home / 280,203,466,694.20-420,975,722,953.98-179,671,299,517.36

Finding the Fourth Proportional to 280,203,466,694.20, 420,975,722,953.98 and 179,671,299,517.36

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Solution

The fourth proportional to 280,203,466,694.20, 420,975,722,953.98 and 179,671,299,517.36 is: 269,936,900,141.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,203,466,694.20 : 420,975,722,953.98 = 179,671,299,517.36 : x
  2. Step 2: Convert to fraction form
    280,203,466,694.20/420,975,722,953.98 = 179,671,299,517.36/x
  3. Step 3: Cross multiply
    280,203,466,694.20x = 420,975,722,953.98 × 179,671,299,517.36
  4. Step 4: Simplify right side
    280,203,466,694.20x = 75,637,255,208,401,687,805,952
  5. Step 5: Solve for x
    x = 75,637,255,208,401,687,805,952/280,203,466,694.20
  6. Step 6: Final answer
    x = 269,936,900,141.74

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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.