Home / 40,064,288.40-55,288,815.84-21,729,575.52

Finding the Fourth Proportional to 40,064,288.40, 55,288,815.84 and 21,729,575.52

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Solution

The fourth proportional to 40,064,288.40, 55,288,815.84 and 21,729,575.52 is: 29,986,867.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,064,288.40 : 55,288,815.84 = 21,729,575.52 : x
  2. Step 2: Convert to fraction form
    40,064,288.40/55,288,815.84 = 21,729,575.52/x
  3. Step 3: Cross multiply
    40,064,288.40x = 55,288,815.84 × 21,729,575.52
  4. Step 4: Simplify right side
    40,064,288.40x = 1,201,402,499,206,652.25
  5. Step 5: Solve for x
    x = 1,201,402,499,206,652.25/40,064,288.40
  6. Step 6: Final answer
    x = 29,986,867.29

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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.