Home / 641,399,428.56-885,133,639.08-348,043,996.56

Finding the Fourth Proportional to 641,399,428.56, 885,133,639.08 and 348,043,996.56

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Solution

The fourth proportional to 641,399,428.56, 885,133,639.08 and 348,043,996.56 is: 480,302,032.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,399,428.56 : 885,133,639.08 = 348,043,996.56 : x
  2. Step 2: Convert to fraction form
    641,399,428.56/885,133,639.08 = 348,043,996.56/x
  3. Step 3: Cross multiply
    641,399,428.56x = 885,133,639.08 × 348,043,996.56
  4. Step 4: Simplify right side
    641,399,428.56x = 308,065,449,235,099,840
  5. Step 5: Solve for x
    x = 308,065,449,235,099,840/641,399,428.56
  6. Step 6: Final answer
    x = 480,302,032.58

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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.