Home / 2,581,632,113.20-3,872,448,169.80-642,935,345.20

Finding the Fourth Proportional to 2,581,632,113.20, 3,872,448,169.80 and 642,935,345.20

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Solution

The fourth proportional to 2,581,632,113.20, 3,872,448,169.80 and 642,935,345.20 is: 964,403,017.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,581,632,113.20 : 3,872,448,169.80 = 642,935,345.20 : x
  2. Step 2: Convert to fraction form
    2,581,632,113.20/3,872,448,169.80 = 642,935,345.20/x
  3. Step 3: Cross multiply
    2,581,632,113.20x = 3,872,448,169.80 × 642,935,345.20
  4. Step 4: Simplify right side
    2,581,632,113.20x = 2,489,733,800,819,471,360
  5. Step 5: Solve for x
    x = 2,489,733,800,819,471,360/2,581,632,113.20
  6. Step 6: Final answer
    x = 964,403,017.80

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Double scale
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Similar ratio
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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.