Home / 258,623,999.10-387,935,998.65-248,420,331.90

Finding the Fourth Proportional to 258,623,999.10, 387,935,998.65 and 248,420,331.90

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Solution

The fourth proportional to 258,623,999.10, 387,935,998.65 and 248,420,331.90 is: 372,630,497.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,623,999.10 : 387,935,998.65 = 248,420,331.90 : x
  2. Step 2: Convert to fraction form
    258,623,999.10/387,935,998.65 = 248,420,331.90/x
  3. Step 3: Cross multiply
    258,623,999.10x = 387,935,998.65 × 248,420,331.90
  4. Step 4: Simplify right side
    258,623,999.10x = 96,371,189,540,590,944
  5. Step 5: Solve for x
    x = 96,371,189,540,590,944/258,623,999.10
  6. Step 6: Final answer
    x = 372,630,497.85

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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.