Home / 100,090,727.78-150,107,092.05-30,058,131.02

Finding the Fourth Proportional to 100,090,727.78, 150,107,092.05 and 30,058,131.02

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Solution

The fourth proportional to 100,090,727.78, 150,107,092.05 and 30,058,131.02 is: 45,078,487.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,090,727.78 : 150,107,092.05 = 30,058,131.02 : x
  2. Step 2: Convert to fraction form
    100,090,727.78/150,107,092.05 = 30,058,131.02/x
  3. Step 3: Cross multiply
    100,090,727.78x = 150,107,092.05 × 30,058,131.02
  4. Step 4: Simplify right side
    100,090,727.78x = 4,511,938,639,870,101
  5. Step 5: Solve for x
    x = 4,511,938,639,870,101/100,090,727.78
  6. Step 6: Final answer
    x = 45,078,487.69

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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.