Home / 5,430,801.42-7,493,673.60-3,138,519.78

Finding the Fourth Proportional to 5,430,801.42, 7,493,673.60 and 3,138,519.78

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Solution

The fourth proportional to 5,430,801.42, 7,493,673.60 and 3,138,519.78 is: 4,330,676.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430,801.42 : 7,493,673.60 = 3,138,519.78 : x
  2. Step 2: Convert to fraction form
    5,430,801.42/7,493,673.60 = 3,138,519.78/x
  3. Step 3: Cross multiply
    5,430,801.42x = 7,493,673.60 × 3,138,519.78
  4. Step 4: Simplify right side
    5,430,801.42x = 23,519,042,818,463.80
  5. Step 5: Solve for x
    x = 23,519,042,818,463.80/5,430,801.42
  6. Step 6: Final answer
    x = 4,330,676.27

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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.