Home / 15,385,939.54-21,233,121.14-8,771,506.13

Finding the Fourth Proportional to 15,385,939.54, 21,233,121.14 and 8,771,506.13

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Solution

The fourth proportional to 15,385,939.54, 21,233,121.14 and 8,771,506.13 is: 12,104,977.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,385,939.54 : 21,233,121.14 = 8,771,506.13 : x
  2. Step 2: Convert to fraction form
    15,385,939.54/21,233,121.14 = 8,771,506.13/x
  3. Step 3: Cross multiply
    15,385,939.54x = 21,233,121.14 × 8,771,506.13
  4. Step 4: Simplify right side
    15,385,939.54x = 186,246,452,238,542.62
  5. Step 5: Solve for x
    x = 186,246,452,238,542.62/15,385,939.54
  6. Step 6: Final answer
    x = 12,104,977.52

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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.