Home / 13,007,131.20-19,489,701.60-10,865,620.80

Finding the Fourth Proportional to 13,007,131.20, 19,489,701.60 and 10,865,620.80

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Solution

The fourth proportional to 13,007,131.20, 19,489,701.60 and 10,865,620.80 is: 16,280,892.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,007,131.20 : 19,489,701.60 = 10,865,620.80 : x
  2. Step 2: Convert to fraction form
    13,007,131.20/19,489,701.60 = 10,865,620.80/x
  3. Step 3: Cross multiply
    13,007,131.20x = 19,489,701.60 × 10,865,620.80
  4. Step 4: Simplify right side
    13,007,131.20x = 211,767,707,090,753.31
  5. Step 5: Solve for x
    x = 211,767,707,090,753.31/13,007,131.20
  6. Step 6: Final answer
    x = 16,280,892.68

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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.