Home / 21,557,999.80-32,336,999.70-20,130,326.20

Finding the Fourth Proportional to 21,557,999.80, 32,336,999.70 and 20,130,326.20

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Solution

The fourth proportional to 21,557,999.80, 32,336,999.70 and 20,130,326.20 is: 30,195,489.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,557,999.80 : 32,336,999.70 = 20,130,326.20 : x
  2. Step 2: Convert to fraction form
    21,557,999.80/32,336,999.70 = 20,130,326.20/x
  3. Step 3: Cross multiply
    21,557,999.80x = 32,336,999.70 × 20,130,326.20
  4. Step 4: Simplify right side
    21,557,999.80x = 650,954,352,290,302.12
  5. Step 5: Solve for x
    x = 650,954,352,290,302.12/21,557,999.80
  6. Step 6: Final answer
    x = 30,195,489.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.