Home / 21,927,021.28-30,258,922.88-12,137,255.44

Finding the Fourth Proportional to 21,927,021.28, 30,258,922.88 and 12,137,255.44

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Solution

The fourth proportional to 21,927,021.28, 30,258,922.88 and 12,137,255.44 is: 16,749,209.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,927,021.28 : 30,258,922.88 = 12,137,255.44 : x
  2. Step 2: Convert to fraction form
    21,927,021.28/30,258,922.88 = 12,137,255.44/x
  3. Step 3: Cross multiply
    21,927,021.28x = 30,258,922.88 × 12,137,255.44
  4. Step 4: Simplify right side
    21,927,021.28x = 367,260,276,333,820.44
  5. Step 5: Solve for x
    x = 367,260,276,333,820.44/21,927,021.28
  6. Step 6: Final answer
    x = 16,749,209.65

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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.