Home / 402,765,390.82-555,786,192.46-226,519,335.58

Finding the Fourth Proportional to 402,765,390.82, 555,786,192.46 and 226,519,335.58

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Solution

The fourth proportional to 402,765,390.82, 555,786,192.46 and 226,519,335.58 is: 312,579,784.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,765,390.82 : 555,786,192.46 = 226,519,335.58 : x
  2. Step 2: Convert to fraction form
    402,765,390.82/555,786,192.46 = 226,519,335.58/x
  3. Step 3: Cross multiply
    402,765,390.82x = 555,786,192.46 × 226,519,335.58
  4. Step 4: Simplify right side
    402,765,390.82x = 125,896,319,040,577,216
  5. Step 5: Solve for x
    x = 125,896,319,040,577,216/402,765,390.82
  6. Step 6: Final answer
    x = 312,579,784.44

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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.