Home / 20,841,947.91-31,265,935.82-7,884,585.27

Finding the Fourth Proportional to 20,841,947.91, 31,265,935.82 and 7,884,585.27

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Solution

The fourth proportional to 20,841,947.91, 31,265,935.82 and 7,884,585.27 is: 11,828,018.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,841,947.91 : 31,265,935.82 = 7,884,585.27 : x
  2. Step 2: Convert to fraction form
    20,841,947.91/31,265,935.82 = 7,884,585.27/x
  3. Step 3: Cross multiply
    20,841,947.91x = 31,265,935.82 × 7,884,585.27
  4. Step 4: Simplify right side
    20,841,947.91x = 246,518,936,979,714.44
  5. Step 5: Solve for x
    x = 246,518,936,979,714.44/20,841,947.91
  6. Step 6: Final answer
    x = 11,828,018.09

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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.