Home / 18,968,628.12-28,453,016.90-4,591,672.84

Finding the Fourth Proportional to 18,968,628.12, 28,453,016.90 and 4,591,672.84

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Solution

The fourth proportional to 18,968,628.12, 28,453,016.90 and 4,591,672.84 is: 6,887,527.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,968,628.12 : 28,453,016.90 = 4,591,672.84 : x
  2. Step 2: Convert to fraction form
    18,968,628.12/28,453,016.90 = 4,591,672.84/x
  3. Step 3: Cross multiply
    18,968,628.12x = 28,453,016.90 × 4,591,672.84
  4. Step 4: Simplify right side
    18,968,628.12x = 130,646,944,915,790.98
  5. Step 5: Solve for x
    x = 130,646,944,915,790.98/18,968,628.12
  6. Step 6: Final answer
    x = 6,887,527.35

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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.