Home / 21,787,103.60-32,680,655.40-13,284,047.60

Finding the Fourth Proportional to 21,787,103.60, 32,680,655.40 and 13,284,047.60

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Solution

The fourth proportional to 21,787,103.60, 32,680,655.40 and 13,284,047.60 is: 19,926,071.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,787,103.60 : 32,680,655.40 = 13,284,047.60 : x
  2. Step 2: Convert to fraction form
    21,787,103.60/32,680,655.40 = 13,284,047.60/x
  3. Step 3: Cross multiply
    21,787,103.60x = 32,680,655.40 × 13,284,047.60
  4. Step 4: Simplify right side
    21,787,103.60x = 434,131,381,932,797
  5. Step 5: Solve for x
    x = 434,131,381,932,797/21,787,103.60
  6. Step 6: Final answer
    x = 19,926,071.40

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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.