Home / 393,145,381.60-589,788,931.20-163,137,716.80

Finding the Fourth Proportional to 393,145,381.60, 589,788,931.20 and 163,137,716.80

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Solution

The fourth proportional to 393,145,381.60, 589,788,931.20 and 163,137,716.80 is: 244,735,978.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,145,381.60 : 589,788,931.20 = 163,137,716.80 : x
  2. Step 2: Convert to fraction form
    393,145,381.60/589,788,931.20 = 163,137,716.80/x
  3. Step 3: Cross multiply
    393,145,381.60x = 589,788,931.20 × 163,137,716.80
  4. Step 4: Simplify right side
    393,145,381.60x = 96,216,819,629,880,304
  5. Step 5: Solve for x
    x = 96,216,819,629,880,304/393,145,381.60
  6. Step 6: Final answer
    x = 244,735,978.43

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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.