Home / 20,537,172.36-28,340,219.34-11,242,960.20

Finding the Fourth Proportional to 20,537,172.36, 28,340,219.34 and 11,242,960.20

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Solution

The fourth proportional to 20,537,172.36, 28,340,219.34 and 11,242,960.20 is: 15,514,694.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,537,172.36 : 28,340,219.34 = 11,242,960.20 : x
  2. Step 2: Convert to fraction form
    20,537,172.36/28,340,219.34 = 11,242,960.20/x
  3. Step 3: Cross multiply
    20,537,172.36x = 28,340,219.34 × 11,242,960.20
  4. Step 4: Simplify right side
    20,537,172.36x = 318,627,958,098,890.25
  5. Step 5: Solve for x
    x = 318,627,958,098,890.25/20,537,172.36
  6. Step 6: Final answer
    x = 15,514,694.65

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1.5x scale

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.