Home / 21,903,785.76-30,215,090.16-12,735,415.20

Finding the Fourth Proportional to 21,903,785.76, 30,215,090.16 and 12,735,415.20

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Solution

The fourth proportional to 21,903,785.76, 30,215,090.16 and 12,735,415.20 is: 17,567,817.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,903,785.76 : 30,215,090.16 = 12,735,415.20 : x
  2. Step 2: Convert to fraction form
    21,903,785.76/30,215,090.16 = 12,735,415.20/x
  3. Step 3: Cross multiply
    21,903,785.76x = 30,215,090.16 × 12,735,415.20
  4. Step 4: Simplify right side
    21,903,785.76x = 384,801,718,493,034.44
  5. Step 5: Solve for x
    x = 384,801,718,493,034.44/21,903,785.76
  6. Step 6: Final answer
    x = 17,567,817.85

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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.