Home / 20,662,718.37-28,514,813.68-11,371,358.22

Finding the Fourth Proportional to 20,662,718.37, 28,514,813.68 and 11,371,358.22

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Solution

The fourth proportional to 20,662,718.37, 28,514,813.68 and 11,371,358.22 is: 15,692,618.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,662,718.37 : 28,514,813.68 = 11,371,358.22 : x
  2. Step 2: Convert to fraction form
    20,662,718.37/28,514,813.68 = 11,371,358.22/x
  3. Step 3: Cross multiply
    20,662,718.37x = 28,514,813.68 × 11,371,358.22
  4. Step 4: Simplify right side
    20,662,718.37x = 324,252,160,946,050.62
  5. Step 5: Solve for x
    x = 324,252,160,946,050.62/20,662,718.37
  6. Step 6: Final answer
    x = 15,692,618.71

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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.