Home / 10,039,977-15,114,593.79-9,147,156.12

Finding the Fourth Proportional to 10,039,977, 15,114,593.79 and 9,147,156.12

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Solution

The fourth proportional to 10,039,977, 15,114,593.79 and 9,147,156.12 is: 13,770,504.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,039,977 : 15,114,593.79 = 9,147,156.12 : x
  2. Step 2: Convert to fraction form
    10,039,977/15,114,593.79 = 9,147,156.12/x
  3. Step 3: Cross multiply
    10,039,977x = 15,114,593.79 × 9,147,156.12
  4. Step 4: Simplify right side
    10,039,977x = 138,255,549,087,512.47
  5. Step 5: Solve for x
    x = 138,255,549,087,512.47/10,039,977
  6. Step 6: Final answer
    x = 13,770,504.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.