Home / 12,156,988.80-18,191,196.45-8,968,342.80

Finding the Fourth Proportional to 12,156,988.80, 18,191,196.45 and 8,968,342.80

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Solution

The fourth proportional to 12,156,988.80, 18,191,196.45 and 8,968,342.80 is: 13,419,843.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156,988.80 : 18,191,196.45 = 8,968,342.80 : x
  2. Step 2: Convert to fraction form
    12,156,988.80/18,191,196.45 = 8,968,342.80/x
  3. Step 3: Cross multiply
    12,156,988.80x = 18,191,196.45 × 8,968,342.80
  4. Step 4: Simplify right side
    12,156,988.80x = 163,144,885,705,743.06
  5. Step 5: Solve for x
    x = 163,144,885,705,743.06/12,156,988.80
  6. Step 6: Final answer
    x = 13,419,843.38

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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.