Home / 663,306,995.20-994,587,244.80-254,376,486.40

Finding the Fourth Proportional to 663,306,995.20, 994,587,244.80 and 254,376,486.40

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Solution

The fourth proportional to 663,306,995.20, 994,587,244.80 and 254,376,486.40 is: 381,421,589.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,306,995.20 : 994,587,244.80 = 254,376,486.40 : x
  2. Step 2: Convert to fraction form
    663,306,995.20/994,587,244.80 = 254,376,486.40/x
  3. Step 3: Cross multiply
    663,306,995.20x = 994,587,244.80 × 254,376,486.40
  4. Step 4: Simplify right side
    663,306,995.20x = 252,999,608,750,480,672
  5. Step 5: Solve for x
    x = 252,999,608,750,480,672/663,306,995.20
  6. Step 6: Final answer
    x = 381,421,589.97

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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.