Home / 20,601,702.64-28,433,868.20-11,898,310.96

Finding the Fourth Proportional to 20,601,702.64, 28,433,868.20 and 11,898,310.96

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Solution

The fourth proportional to 20,601,702.64, 28,433,868.20 and 11,898,310.96 is: 16,421,701.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,601,702.64 : 28,433,868.20 = 11,898,310.96 : x
  2. Step 2: Convert to fraction form
    20,601,702.64/28,433,868.20 = 11,898,310.96/x
  3. Step 3: Cross multiply
    20,601,702.64x = 28,433,868.20 × 11,898,310.96
  4. Step 4: Simplify right side
    20,601,702.64x = 338,315,005,639,255.50
  5. Step 5: Solve for x
    x = 338,315,005,639,255.50/20,601,702.64
  6. Step 6: Final answer
    x = 16,421,701.23

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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.