Home / 28,271,652.41-39,016,546.80-21,290,012.33

Finding the Fourth Proportional to 28,271,652.41, 39,016,546.80 and 21,290,012.33

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Solution

The fourth proportional to 28,271,652.41, 39,016,546.80 and 21,290,012.33 is: 29,381,471.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,271,652.41 : 39,016,546.80 = 21,290,012.33 : x
  2. Step 2: Convert to fraction form
    28,271,652.41/39,016,546.80 = 21,290,012.33/x
  3. Step 3: Cross multiply
    28,271,652.41x = 39,016,546.80 × 21,290,012.33
  4. Step 4: Simplify right side
    28,271,652.41x = 830,662,762,250,939.25
  5. Step 5: Solve for x
    x = 830,662,762,250,939.25/28,271,652.41
  6. Step 6: Final answer
    x = 29,381,471.95

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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.