Home / 393,145,401.60-589,788,961.20-163,137,736.80

Finding the Fourth Proportional to 393,145,401.60, 589,788,961.20 and 163,137,736.80

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Solution

The fourth proportional to 393,145,401.60, 589,788,961.20 and 163,137,736.80 is: 244,736,008.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,145,401.60 : 589,788,961.20 = 163,137,736.80 : x
  2. Step 2: Convert to fraction form
    393,145,401.60/589,788,961.20 = 163,137,736.80/x
  3. Step 3: Cross multiply
    393,145,401.60x = 589,788,961.20 × 163,137,736.80
  4. Step 4: Simplify right side
    393,145,401.60x = 96,216,836,319,791,024
  5. Step 5: Solve for x
    x = 96,216,836,319,791,024/393,145,401.60
  6. Step 6: Final answer
    x = 244,736,008.43

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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.