Home / 3,921,498,804.32-5,411,859,798.20-2,205,387,961.42

Finding the Fourth Proportional to 3,921,498,804.32, 5,411,859,798.20 and 2,205,387,961.42

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Solution

The fourth proportional to 3,921,498,804.32, 5,411,859,798.20 and 2,205,387,961.42 is: 3,043,543,054.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921,498,804.32 : 5,411,859,798.20 = 2,205,387,961.42 : x
  2. Step 2: Convert to fraction form
    3,921,498,804.32/5,411,859,798.20 = 2,205,387,961.42/x
  3. Step 3: Cross multiply
    3,921,498,804.32x = 5,411,859,798.20 × 2,205,387,961.42
  4. Step 4: Simplify right side
    3,921,498,804.32x = 11,935,250,447,843,149,824
  5. Step 5: Solve for x
    x = 11,935,250,447,843,149,824/3,921,498,804.32
  6. Step 6: Final answer
    x = 3,043,543,054.17

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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.