Home / 12,188,689.70-16,820,284.50-6,681,964.50

Finding the Fourth Proportional to 12,188,689.70, 16,820,284.50 and 6,681,964.50

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Solution

The fourth proportional to 12,188,689.70, 16,820,284.50 and 6,681,964.50 is: 9,221,052.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,188,689.70 : 16,820,284.50 = 6,681,964.50 : x
  2. Step 2: Convert to fraction form
    12,188,689.70/16,820,284.50 = 6,681,964.50/x
  3. Step 3: Cross multiply
    12,188,689.70x = 16,820,284.50 × 6,681,964.50
  4. Step 4: Simplify right side
    12,188,689.70x = 112,392,543,908,900.25
  5. Step 5: Solve for x
    x = 112,392,543,908,900.25/12,188,689.70
  6. Step 6: Final answer
    x = 9,221,052.19

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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.