Home / 393,217,666.40-589,968,217.20-163,351,719.20

Finding the Fourth Proportional to 393,217,666.40, 589,968,217.20 and 163,351,719.20

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Solution

The fourth proportional to 393,217,666.40, 589,968,217.20 and 163,351,719.20 is: 245,086,451.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,217,666.40 : 589,968,217.20 = 163,351,719.20 : x
  2. Step 2: Convert to fraction form
    393,217,666.40/589,968,217.20 = 163,351,719.20/x
  3. Step 3: Cross multiply
    393,217,666.40x = 589,968,217.20 × 163,351,719.20
  4. Step 4: Simplify right side
    393,217,666.40x = 96,372,322,552,979,008
  5. Step 5: Solve for x
    x = 96,372,322,552,979,008/393,217,666.40
  6. Step 6: Final answer
    x = 245,086,451.57

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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.