Home / 15,831,821.12-21,836,650.21-14,529,279.40

Finding the Fourth Proportional to 15,831,821.12, 21,836,650.21 and 14,529,279.40

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Solution

The fourth proportional to 15,831,821.12, 21,836,650.21 and 14,529,279.40 is: 20,040,069.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,831,821.12 : 21,836,650.21 = 14,529,279.40 : x
  2. Step 2: Convert to fraction form
    15,831,821.12/21,836,650.21 = 14,529,279.40/x
  3. Step 3: Cross multiply
    15,831,821.12x = 21,836,650.21 × 14,529,279.40
  4. Step 4: Simplify right side
    15,831,821.12x = 317,270,791,970,243.88
  5. Step 5: Solve for x
    x = 317,270,791,970,243.88/15,831,821.12
  6. Step 6: Final answer
    x = 20,040,069.28

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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.