Home / 428,496,081.53-591,331,071.48-240,366,078.05

Finding the Fourth Proportional to 428,496,081.53, 591,331,071.48 and 240,366,078.05

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Solution

The fourth proportional to 428,496,081.53, 591,331,071.48 and 240,366,078.05 is: 331,708,822.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,496,081.53 : 591,331,071.48 = 240,366,078.05 : x
  2. Step 2: Convert to fraction form
    428,496,081.53/591,331,071.48 = 240,366,078.05/x
  3. Step 3: Cross multiply
    428,496,081.53x = 591,331,071.48 × 240,366,078.05
  4. Step 4: Simplify right side
    428,496,081.53x = 142,135,930,480,751,824
  5. Step 5: Solve for x
    x = 142,135,930,480,751,824/428,496,081.53
  6. Step 6: Final answer
    x = 331,708,822.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.