Home / 2,628,288,127.20-3,942,432,190.80-1,338,343,039.20

Finding the Fourth Proportional to 2,628,288,127.20, 3,942,432,190.80 and 1,338,343,039.20

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Solution

The fourth proportional to 2,628,288,127.20, 3,942,432,190.80 and 1,338,343,039.20 is: 2,007,514,558.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628,288,127.20 : 3,942,432,190.80 = 1,338,343,039.20 : x
  2. Step 2: Convert to fraction form
    2,628,288,127.20/3,942,432,190.80 = 1,338,343,039.20/x
  3. Step 3: Cross multiply
    2,628,288,127.20x = 3,942,432,190.80 × 1,338,343,039.20
  4. Step 4: Simplify right side
    2,628,288,127.20x = 5,276,326,680,075,187,200
  5. Step 5: Solve for x
    x = 5,276,326,680,075,187,200/2,628,288,127.20
  6. Step 6: Final answer
    x = 2,007,514,558.80

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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.