Home / 20,784,067.90-31,176,101.85-9,446,659.90

Finding the Fourth Proportional to 20,784,067.90, 31,176,101.85 and 9,446,659.90

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Solution

The fourth proportional to 20,784,067.90, 31,176,101.85 and 9,446,659.90 is: 14,169,989.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,784,067.90 : 31,176,101.85 = 9,446,659.90 : x
  2. Step 2: Convert to fraction form
    20,784,067.90/31,176,101.85 = 9,446,659.90/x
  3. Step 3: Cross multiply
    20,784,067.90x = 31,176,101.85 × 9,446,659.90
  4. Step 4: Simplify right side
    20,784,067.90x = 294,510,031,184,710.81
  5. Step 5: Solve for x
    x = 294,510,031,184,710.81/20,784,067.90
  6. Step 6: Final answer
    x = 14,169,989.85

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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.