Home / 509,964,505.40-764,946,758.10-164,953,008.20

Finding the Fourth Proportional to 509,964,505.40, 764,946,758.10 and 164,953,008.20

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Solution

The fourth proportional to 509,964,505.40, 764,946,758.10 and 164,953,008.20 is: 247,429,512.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,964,505.40 : 764,946,758.10 = 164,953,008.20 : x
  2. Step 2: Convert to fraction form
    509,964,505.40/764,946,758.10 = 164,953,008.20/x
  3. Step 3: Cross multiply
    509,964,505.40x = 764,946,758.10 × 164,953,008.20
  4. Step 4: Simplify right side
    509,964,505.40x = 126,180,268,861,432,704
  5. Step 5: Solve for x
    x = 126,180,268,861,432,704/509,964,505.40
  6. Step 6: Final answer
    x = 247,429,512.30

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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.