Home / 839,162,409.20-1,258,743,613.80-512,645,058.80

Finding the Fourth Proportional to 839,162,409.20, 1,258,743,613.80 and 512,645,058.80

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Solution

The fourth proportional to 839,162,409.20, 1,258,743,613.80 and 512,645,058.80 is: 768,967,588.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,162,409.20 : 1,258,743,613.80 = 512,645,058.80 : x
  2. Step 2: Convert to fraction form
    839,162,409.20/1,258,743,613.80 = 512,645,058.80/x
  3. Step 3: Cross multiply
    839,162,409.20x = 1,258,743,613.80 × 512,645,058.80
  4. Step 4: Simplify right side
    839,162,409.20x = 645,288,693,910,625,536
  5. Step 5: Solve for x
    x = 645,288,693,910,625,536/839,162,409.20
  6. Step 6: Final answer
    x = 768,967,588.20

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1.5x scale

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.