Home / 15,012,100.14-20,718,616.86-8,397,056.22

Finding the Fourth Proportional to 15,012,100.14, 20,718,616.86 and 8,397,056.22

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Solution

The fourth proportional to 15,012,100.14, 20,718,616.86 and 8,397,056.22 is: 11,589,010.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,012,100.14 : 20,718,616.86 = 8,397,056.22 : x
  2. Step 2: Convert to fraction form
    15,012,100.14/20,718,616.86 = 8,397,056.22/x
  3. Step 3: Cross multiply
    15,012,100.14x = 20,718,616.86 × 8,397,056.22
  4. Step 4: Simplify right side
    15,012,100.14x = 173,975,390,574,059.88
  5. Step 5: Solve for x
    x = 173,975,390,574,059.88/15,012,100.14
  6. Step 6: Final answer
    x = 11,589,010.79

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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.