Home / 15,718,833.41-21,691,986.77-8,749,360.67

Finding the Fourth Proportional to 15,718,833.41, 21,691,986.77 and 8,749,360.67

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Solution

The fourth proportional to 15,718,833.41, 21,691,986.77 and 8,749,360.67 is: 12,074,115.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,718,833.41 : 21,691,986.77 = 8,749,360.67 : x
  2. Step 2: Convert to fraction form
    15,718,833.41/21,691,986.77 = 8,749,360.67/x
  3. Step 3: Cross multiply
    15,718,833.41x = 21,691,986.77 × 8,749,360.67
  4. Step 4: Simplify right side
    15,718,833.41x = 189,791,015,855,851.53
  5. Step 5: Solve for x
    x = 189,791,015,855,851.53/15,718,833.41
  6. Step 6: Final answer
    x = 12,074,115.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.