Home / 414,072,003.10-621,108,004.65-126,820,342.30

Finding the Fourth Proportional to 414,072,003.10, 621,108,004.65 and 126,820,342.30

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Solution

The fourth proportional to 414,072,003.10, 621,108,004.65 and 126,820,342.30 is: 190,230,513.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,072,003.10 : 621,108,004.65 = 126,820,342.30 : x
  2. Step 2: Convert to fraction form
    414,072,003.10/621,108,004.65 = 126,820,342.30/x
  3. Step 3: Cross multiply
    414,072,003.10x = 621,108,004.65 × 126,820,342.30
  4. Step 4: Simplify right side
    414,072,003.10x = 78,769,129,754,982,992
  5. Step 5: Solve for x
    x = 78,769,129,754,982,992/414,072,003.10
  6. Step 6: Final answer
    x = 190,230,513.45

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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.