Home / 946,733,079.60-1,420,099,619.40-620,215,729.20

Finding the Fourth Proportional to 946,733,079.60, 1,420,099,619.40 and 620,215,729.20

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Solution

The fourth proportional to 946,733,079.60, 1,420,099,619.40 and 620,215,729.20 is: 930,323,593.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,733,079.60 : 1,420,099,619.40 = 620,215,729.20 : x
  2. Step 2: Convert to fraction form
    946,733,079.60/1,420,099,619.40 = 620,215,729.20/x
  3. Step 3: Cross multiply
    946,733,079.60x = 1,420,099,619.40 × 620,215,729.20
  4. Step 4: Simplify right side
    946,733,079.60x = 880,768,120,982,813,568
  5. Step 5: Solve for x
    x = 880,768,120,982,813,568/946,733,079.60
  6. Step 6: Final answer
    x = 930,323,593.80

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Double scale
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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.