Home / 13,187,918.80-19,781,878.20-8,149,070.80

Finding the Fourth Proportional to 13,187,918.80, 19,781,878.20 and 8,149,070.80

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Solution

The fourth proportional to 13,187,918.80, 19,781,878.20 and 8,149,070.80 is: 12,223,606.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187,918.80 : 19,781,878.20 = 8,149,070.80 : x
  2. Step 2: Convert to fraction form
    13,187,918.80/19,781,878.20 = 8,149,070.80/x
  3. Step 3: Cross multiply
    13,187,918.80x = 19,781,878.20 × 8,149,070.80
  4. Step 4: Simplify right side
    13,187,918.80x = 161,203,926,008,776.56
  5. Step 5: Solve for x
    x = 161,203,926,008,776.56/13,187,918.80
  6. Step 6: Final answer
    x = 12,223,606.20

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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.