Home / 18,439,643.70-27,659,465.55-7,800,693.30

Finding the Fourth Proportional to 18,439,643.70, 27,659,465.55 and 7,800,693.30

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Solution

The fourth proportional to 18,439,643.70, 27,659,465.55 and 7,800,693.30 is: 11,701,039.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,439,643.70 : 27,659,465.55 = 7,800,693.30 : x
  2. Step 2: Convert to fraction form
    18,439,643.70/27,659,465.55 = 7,800,693.30/x
  3. Step 3: Cross multiply
    18,439,643.70x = 27,659,465.55 × 7,800,693.30
  4. Step 4: Simplify right side
    18,439,643.70x = 215,763,007,597,465.81
  5. Step 5: Solve for x
    x = 215,763,007,597,465.81/18,439,643.70
  6. Step 6: Final answer
    x = 11,701,039.95

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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.