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Finding the Fourth Proportional to 8,920,311.81, 12,309,043.06 and 4,946,483.10

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Solution

The fourth proportional to 8,920,311.81, 12,309,043.06 and 4,946,483.10 is: 6,825,599.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,920,311.81 : 12,309,043.06 = 4,946,483.10 : x
  2. Step 2: Convert to fraction form
    8,920,311.81/12,309,043.06 = 4,946,483.10/x
  3. Step 3: Cross multiply
    8,920,311.81x = 12,309,043.06 × 4,946,483.10
  4. Step 4: Simplify right side
    8,920,311.81x = 60,886,473,448,729.87
  5. Step 5: Solve for x
    x = 60,886,473,448,729.87/8,920,311.81
  6. Step 6: Final answer
    x = 6,825,599.23

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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.