Home / 20,405,098.85-28,156,954.41-12,563,367.03

Finding the Fourth Proportional to 20,405,098.85, 28,156,954.41 and 12,563,367.03

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Solution

The fourth proportional to 20,405,098.85, 28,156,954.41 and 12,563,367.03 is: 17,336,164.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,405,098.85 : 28,156,954.41 = 12,563,367.03 : x
  2. Step 2: Convert to fraction form
    20,405,098.85/28,156,954.41 = 12,563,367.03/x
  3. Step 3: Cross multiply
    20,405,098.85x = 28,156,954.41 × 12,563,367.03
  4. Step 4: Simplify right side
    20,405,098.85x = 353,746,152,699,807.06
  5. Step 5: Solve for x
    x = 353,746,152,699,807.06/20,405,098.85
  6. Step 6: Final answer
    x = 17,336,164.62

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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.