Home / 20,620,497.24-28,453,122.88-11,916,989.14

Finding the Fourth Proportional to 20,620,497.24, 28,453,122.88 and 11,916,989.14

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Solution

The fourth proportional to 20,620,497.24, 28,453,122.88 and 11,916,989.14 is: 16,443,616.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620,497.24 : 28,453,122.88 = 11,916,989.14 : x
  2. Step 2: Convert to fraction form
    20,620,497.24/28,453,122.88 = 11,916,989.14/x
  3. Step 3: Cross multiply
    20,620,497.24x = 28,453,122.88 × 11,916,989.14
  4. Step 4: Simplify right side
    20,620,497.24x = 339,075,556,360,045.50
  5. Step 5: Solve for x
    x = 339,075,556,360,045.50/20,620,497.24
  6. Step 6: Final answer
    x = 16,443,616.87

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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.