Home / 414,072,003.60-621,108,005.40-126,820,342.80

Finding the Fourth Proportional to 414,072,003.60, 621,108,005.40 and 126,820,342.80

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Solution

The fourth proportional to 414,072,003.60, 621,108,005.40 and 126,820,342.80 is: 190,230,514.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,072,003.60 : 621,108,005.40 = 126,820,342.80 : x
  2. Step 2: Convert to fraction form
    414,072,003.60/621,108,005.40 = 126,820,342.80/x
  3. Step 3: Cross multiply
    414,072,003.60x = 621,108,005.40 × 126,820,342.80
  4. Step 4: Simplify right side
    414,072,003.60x = 78,769,130,160,652,240
  5. Step 5: Solve for x
    x = 78,769,130,160,652,240/414,072,003.60
  6. Step 6: Final answer
    x = 190,230,514.20

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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.