Home / 8,127,909.54-12,191,808.96-1,979,817.89

Finding the Fourth Proportional to 8,127,909.54, 12,191,808.96 and 1,979,817.89

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Solution

The fourth proportional to 8,127,909.54, 12,191,808.96 and 1,979,817.89 is: 2,969,713.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127,909.54 : 12,191,808.96 = 1,979,817.89 : x
  2. Step 2: Convert to fraction form
    8,127,909.54/12,191,808.96 = 1,979,817.89/x
  3. Step 3: Cross multiply
    8,127,909.54x = 12,191,808.96 × 1,979,817.89
  4. Step 4: Simplify right side
    8,127,909.54x = 24,137,561,429,511.25
  5. Step 5: Solve for x
    x = 24,137,561,429,511.25/8,127,909.54
  6. Step 6: Final answer
    x = 2,969,713.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.