Home / 20,672,318-28,527,798.84-11,507,125.88

Finding the Fourth Proportional to 20,672,318, 28,527,798.84 and 11,507,125.88

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Solution

The fourth proportional to 20,672,318, 28,527,798.84 and 11,507,125.88 is: 15,879,833.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,672,318 : 28,527,798.84 = 11,507,125.88 : x
  2. Step 2: Convert to fraction form
    20,672,318/28,527,798.84 = 11,507,125.88/x
  3. Step 3: Cross multiply
    20,672,318x = 28,527,798.84 × 11,507,125.88
  4. Step 4: Simplify right side
    20,672,318x = 328,272,972,331,198
  5. Step 5: Solve for x
    x = 328,272,972,331,198/20,672,318
  6. Step 6: Final answer
    x = 15,879,833.71

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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.