Home / 42,801,229.12-64,205,576.16-12,096,129.28

Finding the Fourth Proportional to 42,801,229.12, 64,205,576.16 and 12,096,129.28

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Solution

The fourth proportional to 42,801,229.12, 64,205,576.16 and 12,096,129.28 is: 18,145,248.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,801,229.12 : 64,205,576.16 = 12,096,129.28 : x
  2. Step 2: Convert to fraction form
    42,801,229.12/64,205,576.16 = 12,096,129.28/x
  3. Step 3: Cross multiply
    42,801,229.12x = 64,205,576.16 × 12,096,129.28
  4. Step 4: Simplify right side
    42,801,229.12x = 776,638,949,728,245.88
  5. Step 5: Solve for x
    x = 776,638,949,728,245.88/42,801,229.12
  6. Step 6: Final answer
    x = 18,145,248.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.