Home / 21,867,419.20-32,805,065.40-9,089,215.60

Finding the Fourth Proportional to 21,867,419.20, 32,805,065.40 and 9,089,215.60

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Solution

The fourth proportional to 21,867,419.20, 32,805,065.40 and 9,089,215.60 is: 13,635,459.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,867,419.20 : 32,805,065.40 = 9,089,215.60 : x
  2. Step 2: Convert to fraction form
    21,867,419.20/32,805,065.40 = 9,089,215.60/x
  3. Step 3: Cross multiply
    21,867,419.20x = 32,805,065.40 × 9,089,215.60
  4. Step 4: Simplify right side
    21,867,419.20x = 298,172,312,192,700.19
  5. Step 5: Solve for x
    x = 298,172,312,192,700.19/21,867,419.20
  6. Step 6: Final answer
    x = 13,635,459.65

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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.