Home / 641,428,474.89-885,171,295.43-348,073,042.89

Finding the Fourth Proportional to 641,428,474.89, 885,171,295.43 and 348,073,042.89

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Solution

The fourth proportional to 641,428,474.89, 885,171,295.43 and 348,073,042.89 is: 480,340,799.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,428,474.89 : 885,171,295.43 = 348,073,042.89 : x
  2. Step 2: Convert to fraction form
    641,428,474.89/885,171,295.43 = 348,073,042.89/x
  3. Step 3: Cross multiply
    641,428,474.89x = 885,171,295.43 × 348,073,042.89
  4. Step 4: Simplify right side
    641,428,474.89x = 308,104,266,284,036,800
  5. Step 5: Solve for x
    x = 308,104,266,284,036,800/641,428,474.89
  6. Step 6: Final answer
    x = 480,340,799.24

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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.