Home / 13,268,763.89-18,316,543.77-8,920,372.46

Finding the Fourth Proportional to 13,268,763.89, 18,316,543.77 and 8,920,372.46

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Solution

The fourth proportional to 13,268,763.89, 18,316,543.77 and 8,920,372.46 is: 12,313,912.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268,763.89 : 18,316,543.77 = 8,920,372.46 : x
  2. Step 2: Convert to fraction form
    13,268,763.89/18,316,543.77 = 8,920,372.46/x
  3. Step 3: Cross multiply
    13,268,763.89x = 18,316,543.77 × 8,920,372.46
  4. Step 4: Simplify right side
    13,268,763.89x = 163,390,392,516,709.84
  5. Step 5: Solve for x
    x = 163,390,392,516,709.84/13,268,763.89
  6. Step 6: Final answer
    x = 12,313,912.13

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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.