Home / 1,320,889,266.80-1,981,333,900.20-338,313,906.80

Finding the Fourth Proportional to 1,320,889,266.80, 1,981,333,900.20 and 338,313,906.80

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Solution

The fourth proportional to 1,320,889,266.80, 1,981,333,900.20 and 338,313,906.80 is: 507,470,860.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,889,266.80 : 1,981,333,900.20 = 338,313,906.80 : x
  2. Step 2: Convert to fraction form
    1,320,889,266.80/1,981,333,900.20 = 338,313,906.80/x
  3. Step 3: Cross multiply
    1,320,889,266.80x = 1,981,333,900.20 × 338,313,906.80
  4. Step 4: Simplify right side
    1,320,889,266.80x = 670,312,812,451,943,296
  5. Step 5: Solve for x
    x = 670,312,812,451,943,296/1,320,889,266.80
  6. Step 6: Final answer
    x = 507,470,860.20

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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.