Home / 21,696,249.96-29,938,845.87-12,874,180.77

Finding the Fourth Proportional to 21,696,249.96, 29,938,845.87 and 12,874,180.77

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Solution

The fourth proportional to 21,696,249.96, 29,938,845.87 and 12,874,180.77 is: 17,765,195.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,696,249.96 : 29,938,845.87 = 12,874,180.77 : x
  2. Step 2: Convert to fraction form
    21,696,249.96/29,938,845.87 = 12,874,180.77/x
  3. Step 3: Cross multiply
    21,696,249.96x = 29,938,845.87 × 12,874,180.77
  4. Step 4: Simplify right side
    21,696,249.96x = 385,438,113,775,547.94
  5. Step 5: Solve for x
    x = 385,438,113,775,547.94/21,696,249.96
  6. Step 6: Final answer
    x = 17,765,195.11

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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.