Home / 428,305,870.36-591,014,128.62-242,627,120.92

Finding the Fourth Proportional to 428,305,870.36, 591,014,128.62 and 242,627,120.92

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Solution

The fourth proportional to 428,305,870.36, 591,014,128.62 and 242,627,120.92 is: 334,798,251.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,305,870.36 : 591,014,128.62 = 242,627,120.92 : x
  2. Step 2: Convert to fraction form
    428,305,870.36/591,014,128.62 = 242,627,120.92/x
  3. Step 3: Cross multiply
    428,305,870.36x = 591,014,128.62 × 242,627,120.92
  4. Step 4: Simplify right side
    428,305,870.36x = 143,396,056,450,113,168
  5. Step 5: Solve for x
    x = 143,396,056,450,113,168/428,305,870.36
  6. Step 6: Final answer
    x = 334,798,251.37

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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.