Home / 855,264,451.16-1,283,085,633.54-309,991,813.40

Finding the Fourth Proportional to 855,264,451.16, 1,283,085,633.54 and 309,991,813.40

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Solution

The fourth proportional to 855,264,451.16, 1,283,085,633.54 and 309,991,813.40 is: 465,056,207.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,264,451.16 : 1,283,085,633.54 = 309,991,813.40 : x
  2. Step 2: Convert to fraction form
    855,264,451.16/1,283,085,633.54 = 309,991,813.40/x
  3. Step 3: Cross multiply
    855,264,451.16x = 1,283,085,633.54 × 309,991,813.40
  4. Step 4: Simplify right side
    855,264,451.16x = 397,746,042,288,552,448
  5. Step 5: Solve for x
    x = 397,746,042,288,552,448/855,264,451.16
  6. Step 6: Final answer
    x = 465,056,207.76

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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.