Home / 20,723,631.80-31,085,447.70-13,165,359.80

Finding the Fourth Proportional to 20,723,631.80, 31,085,447.70 and 13,165,359.80

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Solution

The fourth proportional to 20,723,631.80, 31,085,447.70 and 13,165,359.80 is: 19,748,039.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723,631.80 : 31,085,447.70 = 13,165,359.80 : x
  2. Step 2: Convert to fraction form
    20,723,631.80/31,085,447.70 = 13,165,359.80/x
  3. Step 3: Cross multiply
    20,723,631.80x = 31,085,447.70 × 13,165,359.80
  4. Step 4: Simplify right side
    20,723,631.80x = 409,251,103,514,582.50
  5. Step 5: Solve for x
    x = 409,251,103,514,582.50/20,723,631.80
  6. Step 6: Final answer
    x = 19,748,039.70

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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.