Home / 20,996,940.16-28,975,778.16-11,339,148.16

Finding the Fourth Proportional to 20,996,940.16, 28,975,778.16 and 11,339,148.16

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Solution

The fourth proportional to 20,996,940.16, 28,975,778.16 and 11,339,148.16 is: 15,648,024.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,996,940.16 : 28,975,778.16 = 11,339,148.16 : x
  2. Step 2: Convert to fraction form
    20,996,940.16/28,975,778.16 = 11,339,148.16/x
  3. Step 3: Cross multiply
    20,996,940.16x = 28,975,778.16 × 11,339,148.16
  4. Step 4: Simplify right side
    20,996,940.16x = 328,560,641,607,532.19
  5. Step 5: Solve for x
    x = 328,560,641,607,532.19/20,996,940.16
  6. Step 6: Final answer
    x = 15,648,024.86

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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.