Home / 18,514,639.42-27,776,393.28-7,725,938.78

Finding the Fourth Proportional to 18,514,639.42, 27,776,393.28 and 7,725,938.78

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Solution

The fourth proportional to 18,514,639.42, 27,776,393.28 and 7,725,938.78 is: 11,590,758.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,514,639.42 : 27,776,393.28 = 7,725,938.78 : x
  2. Step 2: Convert to fraction form
    18,514,639.42/27,776,393.28 = 7,725,938.78/x
  3. Step 3: Cross multiply
    18,514,639.42x = 27,776,393.28 × 7,725,938.78
  4. Step 4: Simplify right side
    18,514,639.42x = 214,598,714,079,924.38
  5. Step 5: Solve for x
    x = 214,598,714,079,924.38/18,514,639.42
  6. Step 6: Final answer
    x = 11,590,758.49

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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.