Home / 839,812,209.20-1,259,718,313.80-826,207,319.60

Finding the Fourth Proportional to 839,812,209.20, 1,259,718,313.80 and 826,207,319.60

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Solution

The fourth proportional to 839,812,209.20, 1,259,718,313.80 and 826,207,319.60 is: 1,239,310,979.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,812,209.20 : 1,259,718,313.80 = 826,207,319.60 : x
  2. Step 2: Convert to fraction form
    839,812,209.20/1,259,718,313.80 = 826,207,319.60/x
  3. Step 3: Cross multiply
    839,812,209.20x = 1,259,718,313.80 × 826,207,319.60
  4. Step 4: Simplify right side
    839,812,209.20x = 1,040,788,491,495,729,664
  5. Step 5: Solve for x
    x = 1,040,788,491,495,729,664/839,812,209.20
  6. Step 6: Final answer
    x = 1,239,310,979.40

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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.