Home / 20,151,646.32-27,809,314.20-13,187,101.20

Finding the Fourth Proportional to 20,151,646.32, 27,809,314.20 and 13,187,101.20

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Solution

The fourth proportional to 20,151,646.32, 27,809,314.20 and 13,187,101.20 is: 18,198,227.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151,646.32 : 27,809,314.20 = 13,187,101.20 : x
  2. Step 2: Convert to fraction form
    20,151,646.32/27,809,314.20 = 13,187,101.20/x
  3. Step 3: Cross multiply
    20,151,646.32x = 27,809,314.20 × 13,187,101.20
  4. Step 4: Simplify right side
    20,151,646.32x = 366,724,240,657,997
  5. Step 5: Solve for x
    x = 366,724,240,657,997/20,151,646.32
  6. Step 6: Final answer
    x = 18,198,227.32

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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.