Home / 13,561,402.72-18,719,646.60-8,979,200.32

Finding the Fourth Proportional to 13,561,402.72, 18,719,646.60 and 8,979,200.32

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Solution

The fourth proportional to 13,561,402.72, 18,719,646.60 and 8,979,200.32 is: 12,394,547.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,561,402.72 : 18,719,646.60 = 8,979,200.32 : x
  2. Step 2: Convert to fraction form
    13,561,402.72/18,719,646.60 = 8,979,200.32/x
  3. Step 3: Cross multiply
    13,561,402.72x = 18,719,646.60 × 8,979,200.32
  4. Step 4: Simplify right side
    13,561,402.72x = 168,087,456,741,006.94
  5. Step 5: Solve for x
    x = 168,087,456,741,006.94/13,561,402.72
  6. Step 6: Final answer
    x = 12,394,547.98

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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.