Home / 620,981,160.30-856,956,665.41-338,729,752.05

Finding the Fourth Proportional to 620,981,160.30, 856,956,665.41 and 338,729,752.05

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Solution

The fourth proportional to 620,981,160.30, 856,956,665.41 and 338,729,752.05 is: 467,448,511.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,981,160.30 : 856,956,665.41 = 338,729,752.05 : x
  2. Step 2: Convert to fraction form
    620,981,160.30/856,956,665.41 = 338,729,752.05/x
  3. Step 3: Cross multiply
    620,981,160.30x = 856,956,665.41 × 338,729,752.05
  4. Step 4: Simplify right side
    620,981,160.30x = 290,276,718,787,639,360
  5. Step 5: Solve for x
    x = 290,276,718,787,639,360/620,981,160.30
  6. Step 6: Final answer
    x = 467,448,511.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.