Home / 18,017,746.80-27,028,095.21-5,238,235.86

Finding the Fourth Proportional to 18,017,746.80, 27,028,095.21 and 5,238,235.86

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Solution

The fourth proportional to 18,017,746.80, 27,028,095.21 and 5,238,235.86 is: 7,857,782.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,017,746.80 : 27,028,095.21 = 5,238,235.86 : x
  2. Step 2: Convert to fraction form
    18,017,746.80/27,028,095.21 = 5,238,235.86/x
  3. Step 3: Cross multiply
    18,017,746.80x = 27,028,095.21 × 5,238,235.86
  4. Step 4: Simplify right side
    18,017,746.80x = 141,579,537,556,516.25
  5. Step 5: Solve for x
    x = 141,579,537,556,516.25/18,017,746.80
  6. Step 6: Final answer
    x = 7,857,782.61

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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.