Home / 20,746,004.94-31,122,506.61-8,621,976.78

Finding the Fourth Proportional to 20,746,004.94, 31,122,506.61 and 8,621,976.78

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Solution

The fourth proportional to 20,746,004.94, 31,122,506.61 and 8,621,976.78 is: 12,934,419.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746,004.94 : 31,122,506.61 = 8,621,976.78 : x
  2. Step 2: Convert to fraction form
    20,746,004.94/31,122,506.61 = 8,621,976.78/x
  3. Step 3: Cross multiply
    20,746,004.94x = 31,122,506.61 × 8,621,976.78
  4. Step 4: Simplify right side
    20,746,004.94x = 268,337,529,326,816.50
  5. Step 5: Solve for x
    x = 268,337,529,326,816.50/20,746,004.94
  6. Step 6: Final answer
    x = 12,934,419.43

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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.