Home / 1,320,889,466.80-1,981,334,200.20-338,314,106.80

Finding the Fourth Proportional to 1,320,889,466.80, 1,981,334,200.20 and 338,314,106.80

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Solution

The fourth proportional to 1,320,889,466.80, 1,981,334,200.20 and 338,314,106.80 is: 507,471,160.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,889,466.80 : 1,981,334,200.20 = 338,314,106.80 : x
  2. Step 2: Convert to fraction form
    1,320,889,466.80/1,981,334,200.20 = 338,314,106.80/x
  3. Step 3: Cross multiply
    1,320,889,466.80x = 1,981,334,200.20 × 338,314,106.80
  4. Step 4: Simplify right side
    1,320,889,466.80x = 670,313,310,212,955,392
  5. Step 5: Solve for x
    x = 670,313,310,212,955,392/1,320,889,466.80
  6. Step 6: Final answer
    x = 507,471,160.20

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Half scale
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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.