Home / 13,921,455.86-19,211,320.09-7,726,142.91

Finding the Fourth Proportional to 13,921,455.86, 19,211,320.09 and 7,726,142.91

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Solution

The fourth proportional to 13,921,455.86, 19,211,320.09 and 7,726,142.91 is: 10,661,916.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921,455.86 : 19,211,320.09 = 7,726,142.91 : x
  2. Step 2: Convert to fraction form
    13,921,455.86/19,211,320.09 = 7,726,142.91/x
  3. Step 3: Cross multiply
    13,921,455.86x = 19,211,320.09 × 7,726,142.91
  4. Step 4: Simplify right side
    13,921,455.86x = 148,429,404,586,794.19
  5. Step 5: Solve for x
    x = 148,429,404,586,794.19/13,921,455.86
  6. Step 6: Final answer
    x = 10,661,916.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.