Home / 2,680,129,057.20-4,020,193,585.80-1,991,381,521.20

Finding the Fourth Proportional to 2,680,129,057.20, 4,020,193,585.80 and 1,991,381,521.20

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Solution

The fourth proportional to 2,680,129,057.20, 4,020,193,585.80 and 1,991,381,521.20 is: 2,987,072,281.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680,129,057.20 : 4,020,193,585.80 = 1,991,381,521.20 : x
  2. Step 2: Convert to fraction form
    2,680,129,057.20/4,020,193,585.80 = 1,991,381,521.20/x
  3. Step 3: Cross multiply
    2,680,129,057.20x = 4,020,193,585.80 × 1,991,381,521.20
  4. Step 4: Simplify right side
    2,680,129,057.20x = 8,005,739,218,408,887,296
  5. Step 5: Solve for x
    x = 8,005,739,218,408,887,296/2,680,129,057.20
  6. Step 6: Final answer
    x = 2,987,072,281.80

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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.