Home / 20,213,254.05-30,319,881.08-11,111,834.85

Finding the Fourth Proportional to 20,213,254.05, 30,319,881.08 and 11,111,834.85

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Solution

The fourth proportional to 20,213,254.05, 30,319,881.08 and 11,111,834.85 is: 16,667,752.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213,254.05 : 30,319,881.08 = 11,111,834.85 : x
  2. Step 2: Convert to fraction form
    20,213,254.05/30,319,881.08 = 11,111,834.85/x
  3. Step 3: Cross multiply
    20,213,254.05x = 30,319,881.08 × 11,111,834.85
  4. Step 4: Simplify right side
    20,213,254.05x = 336,909,511,177,040.44
  5. Step 5: Solve for x
    x = 336,909,511,177,040.44/20,213,254.05
  6. Step 6: Final answer
    x = 16,667,752.28

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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.