Home / 428,142,724.56-590,853,201.39-239,974,496.28

Finding the Fourth Proportional to 428,142,724.56, 590,853,201.39 and 239,974,496.28

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Solution

The fourth proportional to 428,142,724.56, 590,853,201.39 and 239,974,496.28 is: 331,173,908.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,142,724.56 : 590,853,201.39 = 239,974,496.28 : x
  2. Step 2: Convert to fraction form
    428,142,724.56/590,853,201.39 = 239,974,496.28/x
  3. Step 3: Cross multiply
    428,142,724.56x = 590,853,201.39 × 239,974,496.28
  4. Step 4: Simplify right side
    428,142,724.56x = 141,789,699,378,990,640
  5. Step 5: Solve for x
    x = 141,789,699,378,990,640/428,142,724.56
  6. Step 6: Final answer
    x = 331,173,908.24

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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.