Home / 945,238,286.89-1,417,837,959.96-315,016,111.78

Finding the Fourth Proportional to 945,238,286.89, 1,417,837,959.96 and 315,016,111.78

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Solution

The fourth proportional to 945,238,286.89, 1,417,837,959.96 and 315,016,111.78 is: 472,517,678.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,238,286.89 : 1,417,837,959.96 = 315,016,111.78 : x
  2. Step 2: Convert to fraction form
    945,238,286.89/1,417,837,959.96 = 315,016,111.78/x
  3. Step 3: Cross multiply
    945,238,286.89x = 1,417,837,959.96 × 315,016,111.78
  4. Step 4: Simplify right side
    945,238,286.89x = 446,641,801,283,624,384
  5. Step 5: Solve for x
    x = 446,641,801,283,624,384/945,238,286.89
  6. Step 6: Final answer
    x = 472,517,678.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.