Home / 259,310,691.52-388,966,693.38-105,956,747.98

Finding the Fourth Proportional to 259,310,691.52, 388,966,693.38 and 105,956,747.98

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Solution

The fourth proportional to 259,310,691.52, 388,966,693.38 and 105,956,747.98 is: 158,935,390.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,310,691.52 : 388,966,693.38 = 105,956,747.98 : x
  2. Step 2: Convert to fraction form
    259,310,691.52/388,966,693.38 = 105,956,747.98/x
  3. Step 3: Cross multiply
    259,310,691.52x = 388,966,693.38 × 105,956,747.98
  4. Step 4: Simplify right side
    259,310,691.52x = 41,213,645,903,078,592
  5. Step 5: Solve for x
    x = 41,213,645,903,078,592/259,310,691.52
  6. Step 6: Final answer
    x = 158,935,390.06

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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.