Home / 2,680,129,105.20-4,020,193,657.80-1,991,381,569.20

Finding the Fourth Proportional to 2,680,129,105.20, 4,020,193,657.80 and 1,991,381,569.20

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Solution

The fourth proportional to 2,680,129,105.20, 4,020,193,657.80 and 1,991,381,569.20 is: 2,987,072,353.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680,129,105.20 : 4,020,193,657.80 = 1,991,381,569.20 : x
  2. Step 2: Convert to fraction form
    2,680,129,105.20/4,020,193,657.80 = 1,991,381,569.20/x
  3. Step 3: Cross multiply
    2,680,129,105.20x = 4,020,193,657.80 × 1,991,381,569.20
  4. Step 4: Simplify right side
    2,680,129,105.20x = 8,005,739,554,757,652,480
  5. Step 5: Solve for x
    x = 8,005,739,554,757,652,480/2,680,129,105.20
  6. Step 6: Final answer
    x = 2,987,072,353.80

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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.