Home / 428,279,021.30-590,972,797.59-240,063,876.74

Finding the Fourth Proportional to 428,279,021.30, 590,972,797.59 and 240,063,876.74

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Solution

The fourth proportional to 428,279,021.30, 590,972,797.59 and 240,063,876.74 is: 331,258,861.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,279,021.30 : 590,972,797.59 = 240,063,876.74 : x
  2. Step 2: Convert to fraction form
    428,279,021.30/590,972,797.59 = 240,063,876.74/x
  3. Step 3: Cross multiply
    428,279,021.30x = 590,972,797.59 × 240,063,876.74
  4. Step 4: Simplify right side
    428,279,021.30x = 141,871,220,837,338,736
  5. Step 5: Solve for x
    x = 141,871,220,837,338,736/428,279,021.30
  6. Step 6: Final answer
    x = 331,258,861.12

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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.