Home / 20,302,874.43-27,986,970.94-12,447,844.32

Finding the Fourth Proportional to 20,302,874.43, 27,986,970.94 and 12,447,844.32

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Solution

The fourth proportional to 20,302,874.43, 27,986,970.94 and 12,447,844.32 is: 17,159,021.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,302,874.43 : 27,986,970.94 = 12,447,844.32 : x
  2. Step 2: Convert to fraction form
    20,302,874.43/27,986,970.94 = 12,447,844.32/x
  3. Step 3: Cross multiply
    20,302,874.43x = 27,986,970.94 × 12,447,844.32
  4. Step 4: Simplify right side
    20,302,874.43x = 348,377,457,249,484.06
  5. Step 5: Solve for x
    x = 348,377,457,249,484.06/20,302,874.43
  6. Step 6: Final answer
    x = 17,159,021.42

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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.