Home / 12,687,976.19-19,028,916.95-5,857,987.11

Finding the Fourth Proportional to 12,687,976.19, 19,028,916.95 and 5,857,987.11

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Solution

The fourth proportional to 12,687,976.19, 19,028,916.95 and 5,857,987.11 is: 8,785,573.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,976.19 : 19,028,916.95 = 5,857,987.11 : x
  2. Step 2: Convert to fraction form
    12,687,976.19/19,028,916.95 = 5,857,987.11/x
  3. Step 3: Cross multiply
    12,687,976.19x = 19,028,916.95 × 5,857,987.11
  4. Step 4: Simplify right side
    12,687,976.19x = 111,471,150,181,070.59
  5. Step 5: Solve for x
    x = 111,471,150,181,070.59/12,687,976.19
  6. Step 6: Final answer
    x = 8,785,573.72

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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.