Home / 20,771,103.32-31,128,804.87-16,165,650.59

Finding the Fourth Proportional to 20,771,103.32, 31,128,804.87 and 16,165,650.59

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Solution

The fourth proportional to 20,771,103.32, 31,128,804.87 and 16,165,650.59 is: 24,226,800.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,771,103.32 : 31,128,804.87 = 16,165,650.59 : x
  2. Step 2: Convert to fraction form
    20,771,103.32/31,128,804.87 = 16,165,650.59/x
  3. Step 3: Cross multiply
    20,771,103.32x = 31,128,804.87 × 16,165,650.59
  4. Step 4: Simplify right side
    20,771,103.32x = 503,217,382,812,710.38
  5. Step 5: Solve for x
    x = 503,217,382,812,710.38/20,771,103.32
  6. Step 6: Final answer
    x = 24,226,800.81

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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.