Home / 20,605,634.96-28,434,353.81-11,437,556

Finding the Fourth Proportional to 20,605,634.96, 28,434,353.81 and 11,437,556

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Solution

The fourth proportional to 20,605,634.96, 28,434,353.81 and 11,437,556 is: 15,783,037.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,605,634.96 : 28,434,353.81 = 11,437,556 : x
  2. Step 2: Convert to fraction form
    20,605,634.96/28,434,353.81 = 11,437,556/x
  3. Step 3: Cross multiply
    20,605,634.96x = 28,434,353.81 × 11,437,556
  4. Step 4: Simplify right side
    20,605,634.96x = 325,219,514,025,688.38
  5. Step 5: Solve for x
    x = 325,219,514,025,688.38/20,605,634.96
  6. Step 6: Final answer
    x = 15,783,037.73

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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.