Home / 512,811,769.36-769,986,079.12-443,937,015.76

Finding the Fourth Proportional to 512,811,769.36, 769,986,079.12 and 443,937,015.76

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Solution

The fourth proportional to 512,811,769.36, 769,986,079.12 and 443,937,015.76 is: 666,570,743.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,811,769.36 : 769,986,079.12 = 443,937,015.76 : x
  2. Step 2: Convert to fraction form
    512,811,769.36/769,986,079.12 = 443,937,015.76/x
  3. Step 3: Cross multiply
    512,811,769.36x = 769,986,079.12 × 443,937,015.76
  4. Step 4: Simplify right side
    512,811,769.36x = 341,825,322,141,276,032
  5. Step 5: Solve for x
    x = 341,825,322,141,276,032/512,811,769.36
  6. Step 6: Final answer
    x = 666,570,743.04

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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.