Home / 15,189,127.75-20,961,060.14-8,219,805.59

Finding the Fourth Proportional to 15,189,127.75, 20,961,060.14 and 8,219,805.59

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Solution

The fourth proportional to 15,189,127.75, 20,961,060.14 and 8,219,805.59 is: 11,343,366.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,189,127.75 : 20,961,060.14 = 8,219,805.59 : x
  2. Step 2: Convert to fraction form
    15,189,127.75/20,961,060.14 = 8,219,805.59/x
  3. Step 3: Cross multiply
    15,189,127.75x = 20,961,060.14 × 8,219,805.59
  4. Step 4: Simplify right side
    15,189,127.75x = 172,295,839,322,401.81
  5. Step 5: Solve for x
    x = 172,295,839,322,401.81/15,189,127.75
  6. Step 6: Final answer
    x = 11,343,366.27

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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.