Home / 755,229,045.43-1,042,077,729.41-420,693,242.69

Finding the Fourth Proportional to 755,229,045.43, 1,042,077,729.41 and 420,693,242.69

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Solution

The fourth proportional to 755,229,045.43, 1,042,077,729.41 and 420,693,242.69 is: 580,479,606.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,229,045.43 : 1,042,077,729.41 = 420,693,242.69 : x
  2. Step 2: Convert to fraction form
    755,229,045.43/1,042,077,729.41 = 420,693,242.69/x
  3. Step 3: Cross multiply
    755,229,045.43x = 1,042,077,729.41 × 420,693,242.69
  4. Step 4: Simplify right side
    755,229,045.43x = 438,395,059,121,027,008
  5. Step 5: Solve for x
    x = 438,395,059,121,027,008/755,229,045.43
  6. Step 6: Final answer
    x = 580,479,606.52

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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.