Home / 10,031,001.42-13,842,942.21-5,679,969.78

Finding the Fourth Proportional to 10,031,001.42, 13,842,942.21 and 5,679,969.78

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Solution

The fourth proportional to 10,031,001.42, 13,842,942.21 and 5,679,969.78 is: 7,838,449.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,031,001.42 : 13,842,942.21 = 5,679,969.78 : x
  2. Step 2: Convert to fraction form
    10,031,001.42/13,842,942.21 = 5,679,969.78/x
  3. Step 3: Cross multiply
    10,031,001.42x = 13,842,942.21 × 5,679,969.78
  4. Step 4: Simplify right side
    10,031,001.42x = 78,627,493,419,086.42
  5. Step 5: Solve for x
    x = 78,627,493,419,086.42/10,031,001.42
  6. Step 6: Final answer
    x = 7,838,449.04

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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.