Home / 265,636,714.70-398,513,370.51-81,418,043.31

Finding the Fourth Proportional to 265,636,714.70, 398,513,370.51 and 81,418,043.31

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Solution

The fourth proportional to 265,636,714.70, 398,513,370.51 and 81,418,043.31 is: 122,144,933.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,636,714.70 : 398,513,370.51 = 81,418,043.31 : x
  2. Step 2: Convert to fraction form
    265,636,714.70/398,513,370.51 = 81,418,043.31/x
  3. Step 3: Cross multiply
    265,636,714.70x = 398,513,370.51 × 81,418,043.31
  4. Step 4: Simplify right side
    265,636,714.70x = 32,446,178,859,797,256
  5. Step 5: Solve for x
    x = 32,446,178,859,797,256/265,636,714.70
  6. Step 6: Final answer
    x = 122,144,933.53

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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.