Home / 839,162,410.20-1,258,743,615.30-512,645,059.80

Finding the Fourth Proportional to 839,162,410.20, 1,258,743,615.30 and 512,645,059.80

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Solution

The fourth proportional to 839,162,410.20, 1,258,743,615.30 and 512,645,059.80 is: 768,967,589.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,162,410.20 : 1,258,743,615.30 = 512,645,059.80 : x
  2. Step 2: Convert to fraction form
    839,162,410.20/1,258,743,615.30 = 512,645,059.80/x
  3. Step 3: Cross multiply
    839,162,410.20x = 1,258,743,615.30 × 512,645,059.80
  4. Step 4: Simplify right side
    839,162,410.20x = 645,288,695,938,336,640
  5. Step 5: Solve for x
    x = 645,288,695,938,336,640/839,162,410.20
  6. Step 6: Final answer
    x = 768,967,589.70

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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.