Home / 307,918,178.38-461,946,201.81-103,440,676.78

Finding the Fourth Proportional to 307,918,178.38, 461,946,201.81 and 103,440,676.78

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Solution

The fourth proportional to 307,918,178.38, 461,946,201.81 and 103,440,676.78 is: 155,184,172.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,918,178.38 : 461,946,201.81 = 103,440,676.78 : x
  2. Step 2: Convert to fraction form
    307,918,178.38/461,946,201.81 = 103,440,676.78/x
  3. Step 3: Cross multiply
    307,918,178.38x = 461,946,201.81 × 103,440,676.78
  4. Step 4: Simplify right side
    307,918,178.38x = 47,784,027,751,176,864
  5. Step 5: Solve for x
    x = 47,784,027,751,176,864/307,918,178.38
  6. Step 6: Final answer
    x = 155,184,172.64

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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.