Home / 13,268,719.55-18,316,482.75-8,920,327.88

Finding the Fourth Proportional to 13,268,719.55, 18,316,482.75 and 8,920,327.88

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Solution

The fourth proportional to 13,268,719.55, 18,316,482.75 and 8,920,327.88 is: 12,313,850.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268,719.55 : 18,316,482.75 = 8,920,327.88 : x
  2. Step 2: Convert to fraction form
    13,268,719.55/18,316,482.75 = 8,920,327.88/x
  3. Step 3: Cross multiply
    13,268,719.55x = 18,316,482.75 × 8,920,327.88
  4. Step 4: Simplify right side
    13,268,719.55x = 163,389,031,646,781.66
  5. Step 5: Solve for x
    x = 163,389,031,646,781.66/13,268,719.55
  6. Step 6: Final answer
    x = 12,313,850.71

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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.