Home / 18,926,445-28,389,895.01-5,278,760.67

Finding the Fourth Proportional to 18,926,445, 28,389,895.01 and 5,278,760.67

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Solution

The fourth proportional to 18,926,445, 28,389,895.01 and 5,278,760.67 is: 7,918,204.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,926,445 : 28,389,895.01 = 5,278,760.67 : x
  2. Step 2: Convert to fraction form
    18,926,445/28,389,895.01 = 5,278,760.67/x
  3. Step 3: Cross multiply
    18,926,445x = 28,389,895.01 × 5,278,760.67
  4. Step 4: Simplify right side
    18,926,445x = 149,863,461,204,217.25
  5. Step 5: Solve for x
    x = 149,863,461,204,217.25/18,926,445
  6. Step 6: Final answer
    x = 7,918,204.46

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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.