Home / 278,058,324.40-417,087,486.60-213,687,041.20

Finding the Fourth Proportional to 278,058,324.40, 417,087,486.60 and 213,687,041.20

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Solution

The fourth proportional to 278,058,324.40, 417,087,486.60 and 213,687,041.20 is: 320,530,561.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,058,324.40 : 417,087,486.60 = 213,687,041.20 : x
  2. Step 2: Convert to fraction form
    278,058,324.40/417,087,486.60 = 213,687,041.20/x
  3. Step 3: Cross multiply
    278,058,324.40x = 417,087,486.60 × 213,687,041.20
  4. Step 4: Simplify right side
    278,058,324.40x = 89,126,190,933,098,656
  5. Step 5: Solve for x
    x = 89,126,190,933,098,656/278,058,324.40
  6. Step 6: Final answer
    x = 320,530,561.80

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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.