Home / 21,673,765.70-29,919,333.60-15,172,913.60

Finding the Fourth Proportional to 21,673,765.70, 29,919,333.60 and 15,172,913.60

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Solution

The fourth proportional to 21,673,765.70, 29,919,333.60 and 15,172,913.60 is: 20,945,297.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,673,765.70 : 29,919,333.60 = 15,172,913.60 : x
  2. Step 2: Convert to fraction form
    21,673,765.70/29,919,333.60 = 15,172,913.60/x
  3. Step 3: Cross multiply
    21,673,765.70x = 29,919,333.60 × 15,172,913.60
  4. Step 4: Simplify right side
    21,673,765.70x = 453,963,463,682,377
  5. Step 5: Solve for x
    x = 453,963,463,682,377/21,673,765.70
  6. Step 6: Final answer
    x = 20,945,297.18

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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.