Home / 20,533,800.80-28,339,177.68-11,715,423.20

Finding the Fourth Proportional to 20,533,800.80, 28,339,177.68 and 11,715,423.20

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Solution

The fourth proportional to 20,533,800.80, 28,339,177.68 and 11,715,423.20 is: 16,168,728.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,533,800.80 : 28,339,177.68 = 11,715,423.20 : x
  2. Step 2: Convert to fraction form
    20,533,800.80/28,339,177.68 = 11,715,423.20/x
  3. Step 3: Cross multiply
    20,533,800.80x = 28,339,177.68 × 11,715,423.20
  4. Step 4: Simplify right side
    20,533,800.80x = 332,005,459,661,194.12
  5. Step 5: Solve for x
    x = 332,005,459,661,194.12/20,533,800.80
  6. Step 6: Final answer
    x = 16,168,728.96

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1.5x scale

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.