Home / 18,345,998.90-27,518,998.35-7,557,746.60

Finding the Fourth Proportional to 18,345,998.90, 27,518,998.35 and 7,557,746.60

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Solution

The fourth proportional to 18,345,998.90, 27,518,998.35 and 7,557,746.60 is: 11,336,619.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,345,998.90 : 27,518,998.35 = 7,557,746.60 : x
  2. Step 2: Convert to fraction form
    18,345,998.90/27,518,998.35 = 7,557,746.60/x
  3. Step 3: Cross multiply
    18,345,998.90x = 27,518,998.35 × 7,557,746.60
  4. Step 4: Simplify right side
    18,345,998.90x = 207,981,616,215,118.12
  5. Step 5: Solve for x
    x = 207,981,616,215,118.12/18,345,998.90
  6. Step 6: Final answer
    x = 11,336,619.90

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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.