Home / 20,996,932.16-28,975,767.12-11,339,140.16

Finding the Fourth Proportional to 20,996,932.16, 28,975,767.12 and 11,339,140.16

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Solution

The fourth proportional to 20,996,932.16, 28,975,767.12 and 11,339,140.16 is: 15,648,013.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,996,932.16 : 28,975,767.12 = 11,339,140.16 : x
  2. Step 2: Convert to fraction form
    20,996,932.16/28,975,767.12 = 11,339,140.16/x
  3. Step 3: Cross multiply
    20,996,932.16x = 28,975,767.12 × 11,339,140.16
  4. Step 4: Simplify right side
    20,996,932.16x = 328,560,284,617,199.56
  5. Step 5: Solve for x
    x = 328,560,284,617,199.56/20,996,932.16
  6. Step 6: Final answer
    x = 15,648,013.82

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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.