Home / 20,389,818.61-30,585,736.10-5,818,885.75

Finding the Fourth Proportional to 20,389,818.61, 30,585,736.10 and 5,818,885.75

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Solution

The fourth proportional to 20,389,818.61, 30,585,736.10 and 5,818,885.75 is: 8,728,616.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,389,818.61 : 30,585,736.10 = 5,818,885.75 : x
  2. Step 2: Convert to fraction form
    20,389,818.61/30,585,736.10 = 5,818,885.75/x
  3. Step 3: Cross multiply
    20,389,818.61x = 30,585,736.10 × 5,818,885.75
  4. Step 4: Simplify right side
    20,389,818.61x = 177,974,903,945,550.59
  5. Step 5: Solve for x
    x = 177,974,903,945,550.59/20,389,818.61
  6. Step 6: Final answer
    x = 8,728,616.34

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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.