Home / 20,704,473.24-28,572,286.05-12,007,801.86

Finding the Fourth Proportional to 20,704,473.24, 28,572,286.05 and 12,007,801.86

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Solution

The fourth proportional to 20,704,473.24, 28,572,286.05 and 12,007,801.86 is: 16,570,832.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,704,473.24 : 28,572,286.05 = 12,007,801.86 : x
  2. Step 2: Convert to fraction form
    20,704,473.24/28,572,286.05 = 12,007,801.86/x
  3. Step 3: Cross multiply
    20,704,473.24x = 28,572,286.05 × 12,007,801.86
  4. Step 4: Simplify right side
    20,704,473.24x = 343,090,349,575,642.06
  5. Step 5: Solve for x
    x = 343,090,349,575,642.06/20,704,473.24
  6. Step 6: Final answer
    x = 16,570,832.09

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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.