Home / 20,447,621.57-28,217,583.85-11,627,073.50

Finding the Fourth Proportional to 20,447,621.57, 28,217,583.85 and 11,627,073.50

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Solution

The fourth proportional to 20,447,621.57, 28,217,583.85 and 11,627,073.50 is: 16,045,285.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,447,621.57 : 28,217,583.85 = 11,627,073.50 : x
  2. Step 2: Convert to fraction form
    20,447,621.57/28,217,583.85 = 11,627,073.50/x
  3. Step 3: Cross multiply
    20,447,621.57x = 28,217,583.85 × 11,627,073.50
  4. Step 4: Simplify right side
    20,447,621.57x = 328,087,921,416,363
  5. Step 5: Solve for x
    x = 328,087,921,416,363/20,447,621.57
  6. Step 6: Final answer
    x = 16,045,285.28

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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.