Home / 15,199,328.46-20,974,666.92-8,672,839.32

Finding the Fourth Proportional to 15,199,328.46, 20,974,666.92 and 8,672,839.32

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Solution

The fourth proportional to 15,199,328.46, 20,974,666.92 and 8,672,839.32 is: 11,968,286.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,199,328.46 : 20,974,666.92 = 8,672,839.32 : x
  2. Step 2: Convert to fraction form
    15,199,328.46/20,974,666.92 = 8,672,839.32/x
  3. Step 3: Cross multiply
    15,199,328.46x = 20,974,666.92 × 8,672,839.32
  4. Step 4: Simplify right side
    15,199,328.46x = 181,909,915,987,679.31
  5. Step 5: Solve for x
    x = 181,909,915,987,679.31/15,199,328.46
  6. Step 6: Final answer
    x = 11,968,286.39

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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.