Home / 12,889,023.21-17,786,391.75-7,087,754.34

Finding the Fourth Proportional to 12,889,023.21, 17,786,391.75 and 7,087,754.34

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Solution

The fourth proportional to 12,889,023.21, 17,786,391.75 and 7,087,754.34 is: 9,780,847.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,889,023.21 : 17,786,391.75 = 7,087,754.34 : x
  2. Step 2: Convert to fraction form
    12,889,023.21/17,786,391.75 = 7,087,754.34/x
  3. Step 3: Cross multiply
    12,889,023.21x = 17,786,391.75 × 7,087,754.34
  4. Step 4: Simplify right side
    12,889,023.21x = 126,065,575,319,002.69
  5. Step 5: Solve for x
    x = 126,065,575,319,002.69/12,889,023.21
  6. Step 6: Final answer
    x = 9,780,847.88

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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.