Home / 7,143,864,226.25-9,858,480,999.77-3,972,023,571.65

Finding the Fourth Proportional to 7,143,864,226.25, 9,858,480,999.77 and 3,972,023,571.65

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Solution

The fourth proportional to 7,143,864,226.25, 9,858,480,999.77 and 3,972,023,571.65 is: 5,481,363,820.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143,864,226.25 : 9,858,480,999.77 = 3,972,023,571.65 : x
  2. Step 2: Convert to fraction form
    7,143,864,226.25/9,858,480,999.77 = 3,972,023,571.65/x
  3. Step 3: Cross multiply
    7,143,864,226.25x = 9,858,480,999.77 × 3,972,023,571.65
  4. Step 4: Simplify right side
    7,143,864,226.25x = 39,158,118,911,711,928,320
  5. Step 5: Solve for x
    x = 39,158,118,911,711,928,320/7,143,864,226.25
  6. Step 6: Final answer
    x = 5,481,363,820.98

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.