Home / 393,100,128,001.20-589,650,192,001.80-393,100,128,001.20

Finding the Fourth Proportional to 393,100,128,001.20, 589,650,192,001.80 and 393,100,128,001.20

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Solution

The fourth proportional to 393,100,128,001.20, 589,650,192,001.80 and 393,100,128,001.20 is: 589,650,192,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,100,128,001.20 : 589,650,192,001.80 = 393,100,128,001.20 : x
  2. Step 2: Convert to fraction form
    393,100,128,001.20/589,650,192,001.80 = 393,100,128,001.20/x
  3. Step 3: Cross multiply
    393,100,128,001.20x = 589,650,192,001.80 × 393,100,128,001.20
  4. Step 4: Simplify right side
    393,100,128,001.20x = 231,791,565,951,839,772,868,608
  5. Step 5: Solve for x
    x = 231,791,565,951,839,772,868,608/393,100,128,001.20
  6. Step 6: Final answer
    x = 589,650,192,001.80

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1.5x scale

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.