Home / 755,326,949.07-1,042,383,358.71-420,799,282.14

Finding the Fourth Proportional to 755,326,949.07, 1,042,383,358.71 and 420,799,282.14

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Solution

The fourth proportional to 755,326,949.07, 1,042,383,358.71 and 420,799,282.14 is: 580,720,930.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,326,949.07 : 1,042,383,358.71 = 420,799,282.14 : x
  2. Step 2: Convert to fraction form
    755,326,949.07/1,042,383,358.71 = 420,799,282.14/x
  3. Step 3: Cross multiply
    755,326,949.07x = 1,042,383,358.71 × 420,799,282.14
  4. Step 4: Simplify right side
    755,326,949.07x = 438,634,169,059,850,112
  5. Step 5: Solve for x
    x = 438,634,169,059,850,112/755,326,949.07
  6. Step 6: Final answer
    x = 580,720,930.98

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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.