Home / 1,149,700,786.40-1,724,551,179.60-331,839,768.80

Finding the Fourth Proportional to 1,149,700,786.40, 1,724,551,179.60 and 331,839,768.80

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Solution

The fourth proportional to 1,149,700,786.40, 1,724,551,179.60 and 331,839,768.80 is: 497,759,653.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,700,786.40 : 1,724,551,179.60 = 331,839,768.80 : x
  2. Step 2: Convert to fraction form
    1,149,700,786.40/1,724,551,179.60 = 331,839,768.80/x
  3. Step 3: Cross multiply
    1,149,700,786.40x = 1,724,551,179.60 × 331,839,768.80
  4. Step 4: Simplify right side
    1,149,700,786.40x = 572,274,664,722,231,296
  5. Step 5: Solve for x
    x = 572,274,664,722,231,296/1,149,700,786.40
  6. Step 6: Final answer
    x = 497,759,653.20

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Half scale
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Double scale
Find fourth proportional to 1,149,700,787.40, 1,724,551,181.10 and 331,839,769.80
Similar ratio
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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.