Home / 13,268,767.12-18,316,548.40-8,920,375.52

Finding the Fourth Proportional to 13,268,767.12, 18,316,548.40 and 8,920,375.52

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Solution

The fourth proportional to 13,268,767.12, 18,316,548.40 and 8,920,375.52 is: 12,313,916.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268,767.12 : 18,316,548.40 = 8,920,375.52 : x
  2. Step 2: Convert to fraction form
    13,268,767.12/18,316,548.40 = 8,920,375.52/x
  3. Step 3: Cross multiply
    13,268,767.12x = 18,316,548.40 × 8,920,375.52
  4. Step 4: Simplify right side
    13,268,767.12x = 163,390,489,958,255.16
  5. Step 5: Solve for x
    x = 163,390,489,958,255.16/13,268,767.12
  6. Step 6: Final answer
    x = 12,313,916.47

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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.