Home / 19,987,655.28-27,583,053.72-10,820,298

Finding the Fourth Proportional to 19,987,655.28, 27,583,053.72 and 10,820,298

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Solution

The fourth proportional to 19,987,655.28, 27,583,053.72 and 10,820,298 is: 14,932,059.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987,655.28 : 27,583,053.72 = 10,820,298 : x
  2. Step 2: Convert to fraction form
    19,987,655.28/27,583,053.72 = 10,820,298/x
  3. Step 3: Cross multiply
    19,987,655.28x = 27,583,053.72 × 10,820,298
  4. Step 4: Simplify right side
    19,987,655.28x = 298,456,861,000,408.56
  5. Step 5: Solve for x
    x = 298,456,861,000,408.56/19,987,655.28
  6. Step 6: Final answer
    x = 14,932,059.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.