Home / 20,451,945.32-28,223,664.90-11,284,588.52

Finding the Fourth Proportional to 20,451,945.32, 28,223,664.90 and 11,284,588.52

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Solution

The fourth proportional to 20,451,945.32, 28,223,664.90 and 11,284,588.52 is: 15,572,721.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,451,945.32 : 28,223,664.90 = 11,284,588.52 : x
  2. Step 2: Convert to fraction form
    20,451,945.32/28,223,664.90 = 11,284,588.52/x
  3. Step 3: Cross multiply
    20,451,945.32x = 28,223,664.90 × 11,284,588.52
  4. Step 4: Simplify right side
    20,451,945.32x = 318,492,444,922,866.94
  5. Step 5: Solve for x
    x = 318,492,444,922,866.94/20,451,945.32
  6. Step 6: Final answer
    x = 15,572,721.32

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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.