Home / 428,694,984,145.60-643,042,476,218.40-428,694,984,145.60

Finding the Fourth Proportional to 428,694,984,145.60, 643,042,476,218.40 and 428,694,984,145.60

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Solution

The fourth proportional to 428,694,984,145.60, 643,042,476,218.40 and 428,694,984,145.60 is: 643,042,476,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,694,984,145.60 : 643,042,476,218.40 = 428,694,984,145.60 : x
  2. Step 2: Convert to fraction form
    428,694,984,145.60/643,042,476,218.40 = 428,694,984,145.60/x
  3. Step 3: Cross multiply
    428,694,984,145.60x = 643,042,476,218.40 × 428,694,984,145.60
  4. Step 4: Simplify right side
    428,694,984,145.60x = 275,669,084,147,394,363,260,928
  5. Step 5: Solve for x
    x = 275,669,084,147,394,363,260,928/428,694,984,145.60
  6. Step 6: Final answer
    x = 643,042,476,218.40

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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.