Home / 8,309,401.76-12,465,718.60-3,191,457.28

Finding the Fourth Proportional to 8,309,401.76, 12,465,718.60 and 3,191,457.28

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Solution

The fourth proportional to 8,309,401.76, 12,465,718.60 and 3,191,457.28 is: 4,787,806.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,309,401.76 : 12,465,718.60 = 3,191,457.28 : x
  2. Step 2: Convert to fraction form
    8,309,401.76/12,465,718.60 = 3,191,457.28/x
  3. Step 3: Cross multiply
    8,309,401.76x = 12,465,718.60 × 3,191,457.28
  4. Step 4: Simplify right side
    8,309,401.76x = 39,783,808,376,401.41
  5. Step 5: Solve for x
    x = 39,783,808,376,401.41/8,309,401.76
  6. Step 6: Final answer
    x = 4,787,806.57

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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.