Home / 12,788,982.80-19,181,723.16-4,269,124.88

Finding the Fourth Proportional to 12,788,982.80, 19,181,723.16 and 4,269,124.88

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Solution

The fourth proportional to 12,788,982.80, 19,181,723.16 and 4,269,124.88 is: 6,403,102.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788,982.80 : 19,181,723.16 = 4,269,124.88 : x
  2. Step 2: Convert to fraction form
    12,788,982.80/19,181,723.16 = 4,269,124.88/x
  3. Step 3: Cross multiply
    12,788,982.80x = 19,181,723.16 × 4,269,124.88
  4. Step 4: Simplify right side
    12,788,982.80x = 81,889,171,583,628.22
  5. Step 5: Solve for x
    x = 81,889,171,583,628.22/12,788,982.80
  6. Step 6: Final answer
    x = 6,403,102.80

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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.