Home / 664,302,984.40-996,454,476.60-660,476,609.20

Finding the Fourth Proportional to 664,302,984.40, 996,454,476.60 and 660,476,609.20

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Solution

The fourth proportional to 664,302,984.40, 996,454,476.60 and 660,476,609.20 is: 990,714,913.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,302,984.40 : 996,454,476.60 = 660,476,609.20 : x
  2. Step 2: Convert to fraction form
    664,302,984.40/996,454,476.60 = 660,476,609.20/x
  3. Step 3: Cross multiply
    664,302,984.40x = 996,454,476.60 × 660,476,609.20
  4. Step 4: Simplify right side
    664,302,984.40x = 658,134,873,926,928,768
  5. Step 5: Solve for x
    x = 658,134,873,926,928,768/664,302,984.40
  6. Step 6: Final answer
    x = 990,714,913.80

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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.