Home / 258,324,328.28-387,267,026.96-120,230,128.02

Finding the Fourth Proportional to 258,324,328.28, 387,267,026.96 and 120,230,128.02

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Solution

The fourth proportional to 258,324,328.28, 387,267,026.96 and 120,230,128.02 is: 180,243,047.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,324,328.28 : 387,267,026.96 = 120,230,128.02 : x
  2. Step 2: Convert to fraction form
    258,324,328.28/387,267,026.96 = 120,230,128.02/x
  3. Step 3: Cross multiply
    258,324,328.28x = 387,267,026.96 × 120,230,128.02
  4. Step 4: Simplify right side
    258,324,328.28x = 46,561,164,229,325,584
  5. Step 5: Solve for x
    x = 46,561,164,229,325,584/258,324,328.28
  6. Step 6: Final answer
    x = 180,243,047.72

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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.