Home / 8,491,364.40-12,718,384.20-5,119,690.80

Finding the Fourth Proportional to 8,491,364.40, 12,718,384.20 and 5,119,690.80

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Solution

The fourth proportional to 8,491,364.40, 12,718,384.20 and 5,119,690.80 is: 7,668,284.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,491,364.40 : 12,718,384.20 = 5,119,690.80 : x
  2. Step 2: Convert to fraction form
    8,491,364.40/12,718,384.20 = 5,119,690.80/x
  3. Step 3: Cross multiply
    8,491,364.40x = 12,718,384.20 × 5,119,690.80
  4. Step 4: Simplify right side
    8,491,364.40x = 65,114,194,579,605.35
  5. Step 5: Solve for x
    x = 65,114,194,579,605.35/8,491,364.40
  6. Step 6: Final answer
    x = 7,668,284.10

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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.