Home / 20,771,918.24-28,663,745.40-11,479,377.11

Finding the Fourth Proportional to 20,771,918.24, 28,663,745.40 and 11,479,377.11

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Solution

The fourth proportional to 20,771,918.24, 28,663,745.40 and 11,479,377.11 is: 15,840,710.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,771,918.24 : 28,663,745.40 = 11,479,377.11 : x
  2. Step 2: Convert to fraction form
    20,771,918.24/28,663,745.40 = 11,479,377.11/x
  3. Step 3: Cross multiply
    20,771,918.24x = 28,663,745.40 × 11,479,377.11
  4. Step 4: Simplify right side
    20,771,918.24x = 329,041,942,688,309.06
  5. Step 5: Solve for x
    x = 329,041,942,688,309.06/20,771,918.24
  6. Step 6: Final answer
    x = 15,840,710.47

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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.