Home / 2,640,293,959.45-3,960,440,939.18-2,214,131,421.55

Finding the Fourth Proportional to 2,640,293,959.45, 3,960,440,939.18 and 2,214,131,421.55

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Solution

The fourth proportional to 2,640,293,959.45, 3,960,440,939.18 and 2,214,131,421.55 is: 3,321,197,132.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640,293,959.45 : 3,960,440,939.18 = 2,214,131,421.55 : x
  2. Step 2: Convert to fraction form
    2,640,293,959.45/3,960,440,939.18 = 2,214,131,421.55/x
  3. Step 3: Cross multiply
    2,640,293,959.45x = 3,960,440,939.18 × 2,214,131,421.55
  4. Step 4: Simplify right side
    2,640,293,959.45x = 8,768,936,726,620,360,704
  5. Step 5: Solve for x
    x = 8,768,936,726,620,360,704/2,640,293,959.45
  6. Step 6: Final answer
    x = 3,321,197,132.33

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Double scale
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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.