Home / 54,013,979.82-81,018,111.42-15,155,137.83

Finding the Fourth Proportional to 54,013,979.82, 81,018,111.42 and 15,155,137.83

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Solution

The fourth proportional to 54,013,979.82, 81,018,111.42 and 15,155,137.83 is: 22,731,904.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,013,979.82 : 81,018,111.42 = 15,155,137.83 : x
  2. Step 2: Convert to fraction form
    54,013,979.82/81,018,111.42 = 15,155,137.83/x
  3. Step 3: Cross multiply
    54,013,979.82x = 81,018,111.42 × 15,155,137.83
  4. Step 4: Simplify right side
    54,013,979.82x = 1,227,840,645,296,397
  5. Step 5: Solve for x
    x = 1,227,840,645,296,397/54,013,979.82
  6. Step 6: Final answer
    x = 22,731,904.77

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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.