Home / 113,320,039.20-169,980,058.80-72,505,370.40

Finding the Fourth Proportional to 113,320,039.20, 169,980,058.80 and 72,505,370.40

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Solution

The fourth proportional to 113,320,039.20, 169,980,058.80 and 72,505,370.40 is: 108,758,055.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,320,039.20 : 169,980,058.80 = 72,505,370.40 : x
  2. Step 2: Convert to fraction form
    113,320,039.20/169,980,058.80 = 72,505,370.40/x
  3. Step 3: Cross multiply
    113,320,039.20x = 169,980,058.80 × 72,505,370.40
  4. Step 4: Simplify right side
    113,320,039.20x = 12,324,467,123,907,782
  5. Step 5: Solve for x
    x = 12,324,467,123,907,782/113,320,039.20
  6. Step 6: Final answer
    x = 108,758,055.60

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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.