Home / 21,689,201.52-29,931,403.49-11,899,467.81

Finding the Fourth Proportional to 21,689,201.52, 29,931,403.49 and 11,899,467.81

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Solution

The fourth proportional to 21,689,201.52, 29,931,403.49 and 11,899,467.81 is: 16,421,433.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,689,201.52 : 29,931,403.49 = 11,899,467.81 : x
  2. Step 2: Convert to fraction form
    21,689,201.52/29,931,403.49 = 11,899,467.81/x
  3. Step 3: Cross multiply
    21,689,201.52x = 29,931,403.49 × 11,899,467.81
  4. Step 4: Simplify right side
    21,689,201.52x = 356,167,772,277,879.31
  5. Step 5: Solve for x
    x = 356,167,772,277,879.31/21,689,201.52
  6. Step 6: Final answer
    x = 16,421,433.12

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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.