Home / 265,042,721.80-397,046,878.12-206,476,172.04

Finding the Fourth Proportional to 265,042,721.80, 397,046,878.12 and 206,476,172.04

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Solution

The fourth proportional to 265,042,721.80, 397,046,878.12 and 206,476,172.04 is: 309,311,340.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,042,721.80 : 397,046,878.12 = 206,476,172.04 : x
  2. Step 2: Convert to fraction form
    265,042,721.80/397,046,878.12 = 206,476,172.04/x
  3. Step 3: Cross multiply
    265,042,721.80x = 397,046,878.12 × 206,476,172.04
  4. Step 4: Simplify right side
    265,042,721.80x = 81,980,719,514,650,032
  5. Step 5: Solve for x
    x = 81,980,719,514,650,032/265,042,721.80
  6. Step 6: Final answer
    x = 309,311,340.29

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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.