Home / 882,956,129.84-1,218,517,049.40-491,815,726.64

Finding the Fourth Proportional to 882,956,129.84, 1,218,517,049.40 and 491,815,726.64

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Solution

The fourth proportional to 882,956,129.84, 1,218,517,049.40 and 491,815,726.64 is: 678,726,640.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,956,129.84 : 1,218,517,049.40 = 491,815,726.64 : x
  2. Step 2: Convert to fraction form
    882,956,129.84/1,218,517,049.40 = 491,815,726.64/x
  3. Step 3: Cross multiply
    882,956,129.84x = 1,218,517,049.40 × 491,815,726.64
  4. Step 4: Simplify right side
    882,956,129.84x = 599,285,848,073,889,792
  5. Step 5: Solve for x
    x = 599,285,848,073,889,792/882,956,129.84
  6. Step 6: Final answer
    x = 678,726,640.91

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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.