Home / 766,872,704.80-1,150,309,057.20-644,428,698.40

Finding the Fourth Proportional to 766,872,704.80, 1,150,309,057.20 and 644,428,698.40

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Solution

The fourth proportional to 766,872,704.80, 1,150,309,057.20 and 644,428,698.40 is: 966,643,047.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,872,704.80 : 1,150,309,057.20 = 644,428,698.40 : x
  2. Step 2: Convert to fraction form
    766,872,704.80/1,150,309,057.20 = 644,428,698.40/x
  3. Step 3: Cross multiply
    766,872,704.80x = 1,150,309,057.20 × 644,428,698.40
  4. Step 4: Simplify right side
    766,872,704.80x = 741,292,168,489,127,168
  5. Step 5: Solve for x
    x = 741,292,168,489,127,168/766,872,704.80
  6. Step 6: Final answer
    x = 966,643,047.60

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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.