Home / 21,988,505.20-32,986,694.40-9,210,301.60

Finding the Fourth Proportional to 21,988,505.20, 32,986,694.40 and 9,210,301.60

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Solution

The fourth proportional to 21,988,505.20, 32,986,694.40 and 9,210,301.60 is: 13,817,101.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,988,505.20 : 32,986,694.40 = 9,210,301.60 : x
  2. Step 2: Convert to fraction form
    21,988,505.20/32,986,694.40 = 9,210,301.60/x
  3. Step 3: Cross multiply
    21,988,505.20x = 32,986,694.40 × 9,210,301.60
  4. Step 4: Simplify right side
    21,988,505.20x = 303,817,404,211,031
  5. Step 5: Solve for x
    x = 303,817,404,211,031/21,988,505.20
  6. Step 6: Final answer
    x = 13,817,101.32

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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.