Home / 15,414,664.72-21,223,705.32-13,086,953.20

Finding the Fourth Proportional to 15,414,664.72, 21,223,705.32 and 13,086,953.20

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Solution

The fourth proportional to 15,414,664.72, 21,223,705.32 and 13,086,953.20 is: 18,018,792.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,414,664.72 : 21,223,705.32 = 13,086,953.20 : x
  2. Step 2: Convert to fraction form
    15,414,664.72/21,223,705.32 = 13,086,953.20/x
  3. Step 3: Cross multiply
    15,414,664.72x = 21,223,705.32 × 13,086,953.20
  4. Step 4: Simplify right side
    15,414,664.72x = 277,753,638,253,431
  5. Step 5: Solve for x
    x = 277,753,638,253,431/15,414,664.72
  6. Step 6: Final answer
    x = 18,018,792.06

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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.