Home / 39,993,108.32-55,190,214.80-21,657,974.24

Finding the Fourth Proportional to 39,993,108.32, 55,190,214.80 and 21,657,974.24

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Solution

The fourth proportional to 39,993,108.32, 55,190,214.80 and 21,657,974.24 is: 29,887,855.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,993,108.32 : 55,190,214.80 = 21,657,974.24 : x
  2. Step 2: Convert to fraction form
    39,993,108.32/55,190,214.80 = 21,657,974.24/x
  3. Step 3: Cross multiply
    39,993,108.32x = 55,190,214.80 × 21,657,974.24
  4. Step 4: Simplify right side
    39,993,108.32x = 1,195,308,250,438,466.50
  5. Step 5: Solve for x
    x = 1,195,308,250,438,466.50/39,993,108.32
  6. Step 6: Final answer
    x = 29,887,855.70

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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.