Home / 12,843,689.58-17,729,943.12-8,991,332.82

Finding the Fourth Proportional to 12,843,689.58, 17,729,943.12 and 8,991,332.82

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Solution

The fourth proportional to 12,843,689.58, 17,729,943.12 and 8,991,332.82 is: 12,411,995.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,843,689.58 : 17,729,943.12 = 8,991,332.82 : x
  2. Step 2: Convert to fraction form
    12,843,689.58/17,729,943.12 = 8,991,332.82/x
  3. Step 3: Cross multiply
    12,843,689.58x = 17,729,943.12 × 8,991,332.82
  4. Step 4: Simplify right side
    12,843,689.58x = 159,415,819,471,589.22
  5. Step 5: Solve for x
    x = 159,415,819,471,589.22/12,843,689.58
  6. Step 6: Final answer
    x = 12,411,995.67

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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.