Home / 393,717,418.40-543,345,576.48-226,453,411.28

Finding the Fourth Proportional to 393,717,418.40, 543,345,576.48 and 226,453,411.28

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Solution

The fourth proportional to 393,717,418.40, 543,345,576.48 and 226,453,411.28 is: 312,514,645.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,717,418.40 : 543,345,576.48 = 226,453,411.28 : x
  2. Step 2: Convert to fraction form
    393,717,418.40/543,345,576.48 = 226,453,411.28/x
  3. Step 3: Cross multiply
    393,717,418.40x = 543,345,576.48 × 226,453,411.28
  4. Step 4: Simplify right side
    393,717,418.40x = 123,042,459,295,077,408
  5. Step 5: Solve for x
    x = 123,042,459,295,077,408/393,717,418.40
  6. Step 6: Final answer
    x = 312,514,645.14

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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.