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Finding the Fourth Proportional to 400,026,200.40, 600,039,300.60 and 356,660,614.80

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Solution

The fourth proportional to 400,026,200.40, 600,039,300.60 and 356,660,614.80 is: 534,990,922.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,026,200.40 : 600,039,300.60 = 356,660,614.80 : x
  2. Step 2: Convert to fraction form
    400,026,200.40/600,039,300.60 = 356,660,614.80/x
  3. Step 3: Cross multiply
    400,026,200.40x = 600,039,300.60 × 356,660,614.80
  4. Step 4: Simplify right side
    400,026,200.40x = 214,010,385,856,158,016
  5. Step 5: Solve for x
    x = 214,010,385,856,158,016/400,026,200.40
  6. Step 6: Final answer
    x = 534,990,922.20

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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.