Home / 27,090,890.72-40,640,301.84-12,715,418.72

Finding the Fourth Proportional to 27,090,890.72, 40,640,301.84 and 12,715,418.72

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Solution

The fourth proportional to 27,090,890.72, 40,640,301.84 and 12,715,418.72 is: 19,074,989.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,090,890.72 : 40,640,301.84 = 12,715,418.72 : x
  2. Step 2: Convert to fraction form
    27,090,890.72/40,640,301.84 = 12,715,418.72/x
  3. Step 3: Cross multiply
    27,090,890.72x = 40,640,301.84 × 12,715,418.72
  4. Step 4: Simplify right side
    27,090,890.72x = 516,758,454,802,786.50
  5. Step 5: Solve for x
    x = 516,758,454,802,786.50/27,090,890.72
  6. Step 6: Final answer
    x = 19,074,989.45

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1.5x scale

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.