Home / 641,428,563.30-885,171,417.44-348,073,131.30

Finding the Fourth Proportional to 641,428,563.30, 885,171,417.44 and 348,073,131.30

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Solution

The fourth proportional to 641,428,563.30, 885,171,417.44 and 348,073,131.30 is: 480,340,921.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,428,563.30 : 885,171,417.44 = 348,073,131.30 : x
  2. Step 2: Convert to fraction form
    641,428,563.30/885,171,417.44 = 348,073,131.30/x
  3. Step 3: Cross multiply
    641,428,563.30x = 885,171,417.44 × 348,073,131.30
  4. Step 4: Simplify right side
    641,428,563.30x = 308,104,387,003,859,840
  5. Step 5: Solve for x
    x = 308,104,387,003,859,840/641,428,563.30
  6. Step 6: Final answer
    x = 480,340,921.24

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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.