Home / 28,964,022.81-39,970,377.68-15,912,127.23

Finding the Fourth Proportional to 28,964,022.81, 39,970,377.68 and 15,912,127.23

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Solution

The fourth proportional to 28,964,022.81, 39,970,377.68 and 15,912,127.23 is: 21,958,749.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,964,022.81 : 39,970,377.68 = 15,912,127.23 : x
  2. Step 2: Convert to fraction form
    28,964,022.81/39,970,377.68 = 15,912,127.23/x
  3. Step 3: Cross multiply
    28,964,022.81x = 39,970,377.68 × 15,912,127.23
  4. Step 4: Simplify right side
    28,964,022.81x = 636,013,734,995,751.50
  5. Step 5: Solve for x
    x = 636,013,734,995,751.50/28,964,022.81
  6. Step 6: Final answer
    x = 21,958,749.97

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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.