Home / 769,824,658.40-1,154,736,987.60-360,922,143.20

Finding the Fourth Proportional to 769,824,658.40, 1,154,736,987.60 and 360,922,143.20

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Solution

The fourth proportional to 769,824,658.40, 1,154,736,987.60 and 360,922,143.20 is: 541,383,214.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,824,658.40 : 1,154,736,987.60 = 360,922,143.20 : x
  2. Step 2: Convert to fraction form
    769,824,658.40/1,154,736,987.60 = 360,922,143.20/x
  3. Step 3: Cross multiply
    769,824,658.40x = 1,154,736,987.60 × 360,922,143.20
  4. Step 4: Simplify right side
    769,824,658.40x = 416,770,148,396,903,808
  5. Step 5: Solve for x
    x = 416,770,148,396,903,808/769,824,658.40
  6. Step 6: Final answer
    x = 541,383,214.80

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Double scale
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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.