Home / 979,808,620.20-1,469,712,930.30-397,821,676.20

Finding the Fourth Proportional to 979,808,620.20, 1,469,712,930.30 and 397,821,676.20

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Solution

The fourth proportional to 979,808,620.20, 1,469,712,930.30 and 397,821,676.20 is: 596,732,514.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,808,620.20 : 1,469,712,930.30 = 397,821,676.20 : x
  2. Step 2: Convert to fraction form
    979,808,620.20/1,469,712,930.30 = 397,821,676.20/x
  3. Step 3: Cross multiply
    979,808,620.20x = 1,469,712,930.30 × 397,821,676.20
  4. Step 4: Simplify right side
    979,808,620.20x = 584,683,661,464,759,680
  5. Step 5: Solve for x
    x = 584,683,661,464,759,680/979,808,620.20
  6. Step 6: Final answer
    x = 596,732,514.30

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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.