Home / 21,909,032.73-30,231,830.70-12,619,623.87

Finding the Fourth Proportional to 21,909,032.73, 30,231,830.70 and 12,619,623.87

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Solution

The fourth proportional to 21,909,032.73, 30,231,830.70 and 12,619,623.87 is: 17,413,563.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,909,032.73 : 30,231,830.70 = 12,619,623.87 : x
  2. Step 2: Convert to fraction form
    21,909,032.73/30,231,830.70 = 12,619,623.87/x
  3. Step 3: Cross multiply
    21,909,032.73x = 30,231,830.70 × 12,619,623.87
  4. Step 4: Simplify right side
    21,909,032.73x = 381,514,332,335,518.75
  5. Step 5: Solve for x
    x = 381,514,332,335,518.75/21,909,032.73
  6. Step 6: Final answer
    x = 17,413,563.48

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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.