Home / 20,533,674.30-30,800,511.45-12,455,771.10

Finding the Fourth Proportional to 20,533,674.30, 30,800,511.45 and 12,455,771.10

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Solution

The fourth proportional to 20,533,674.30, 30,800,511.45 and 12,455,771.10 is: 18,683,656.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,533,674.30 : 30,800,511.45 = 12,455,771.10 : x
  2. Step 2: Convert to fraction form
    20,533,674.30/30,800,511.45 = 12,455,771.10/x
  3. Step 3: Cross multiply
    20,533,674.30x = 30,800,511.45 × 12,455,771.10
  4. Step 4: Simplify right side
    20,533,674.30x = 383,644,120,384,129.06
  5. Step 5: Solve for x
    x = 383,644,120,384,129.06/20,533,674.30
  6. Step 6: Final answer
    x = 18,683,656.65

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1.5x scale

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.