Home / 13,268,729.10-18,316,495.86-8,920,337.42

Finding the Fourth Proportional to 13,268,729.10, 18,316,495.86 and 8,920,337.42

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Solution

The fourth proportional to 13,268,729.10, 18,316,495.86 and 8,920,337.42 is: 12,313,863.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268,729.10 : 18,316,495.86 = 8,920,337.42 : x
  2. Step 2: Convert to fraction form
    13,268,729.10/18,316,495.86 = 8,920,337.42/x
  3. Step 3: Cross multiply
    13,268,729.10x = 18,316,495.86 × 8,920,337.42
  4. Step 4: Simplify right side
    13,268,729.10x = 163,389,323,423,233.06
  5. Step 5: Solve for x
    x = 163,389,323,423,233.06/13,268,729.10
  6. Step 6: Final answer
    x = 12,313,863.84

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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.