Home / 19,904,684,318.69-27,468,278,720.81-10,872,438,967.78

Finding the Fourth Proportional to 19,904,684,318.69, 27,468,278,720.81 and 10,872,438,967.78

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Solution

The fourth proportional to 19,904,684,318.69, 27,468,278,720.81 and 10,872,438,967.78 is: 15,003,864,374.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,904,684,318.69 : 27,468,278,720.81 = 10,872,438,967.78 : x
  2. Step 2: Convert to fraction form
    19,904,684,318.69/27,468,278,720.81 = 10,872,438,967.78/x
  3. Step 3: Cross multiply
    19,904,684,318.69x = 27,468,278,720.81 × 10,872,438,967.78
  4. Step 4: Simplify right side
    19,904,684,318.69x = 298,647,183,941,976,850,432
  5. Step 5: Solve for x
    x = 298,647,183,941,976,850,432/19,904,684,318.69
  6. Step 6: Final answer
    x = 15,003,864,374.86

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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.