Home / 12,662,761.80-18,994,142.70-5,469,281.40

Finding the Fourth Proportional to 12,662,761.80, 18,994,142.70 and 5,469,281.40

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Solution

The fourth proportional to 12,662,761.80, 18,994,142.70 and 5,469,281.40 is: 8,203,922.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,662,761.80 : 18,994,142.70 = 5,469,281.40 : x
  2. Step 2: Convert to fraction form
    12,662,761.80/18,994,142.70 = 5,469,281.40/x
  3. Step 3: Cross multiply
    12,662,761.80x = 18,994,142.70 × 5,469,281.40
  4. Step 4: Simplify right side
    12,662,761.80x = 103,884,311,378,055.78
  5. Step 5: Solve for x
    x = 103,884,311,378,055.78/12,662,761.80
  6. Step 6: Final answer
    x = 8,203,922.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.