Home / 1,225,863,431.52-1,691,727,264-668,982,350.40

Finding the Fourth Proportional to 1,225,863,431.52, 1,691,727,264 and 668,982,350.40

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Solution

The fourth proportional to 1,225,863,431.52, 1,691,727,264 and 668,982,350.40 is: 923,215,141.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,863,431.52 : 1,691,727,264 = 668,982,350.40 : x
  2. Step 2: Convert to fraction form
    1,225,863,431.52/1,691,727,264 = 668,982,350.40/x
  3. Step 3: Cross multiply
    1,225,863,431.52x = 1,691,727,264 × 668,982,350.40
  4. Step 4: Simplify right side
    1,225,863,431.52x = 1,131,735,681,306,481,280
  5. Step 5: Solve for x
    x = 1,131,735,681,306,481,280/1,225,863,431.52
  6. Step 6: Final answer
    x = 923,215,141.43

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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.