Home / 21,027,809.87-29,018,755.54-12,332,254.13

Finding the Fourth Proportional to 21,027,809.87, 29,018,755.54 and 12,332,254.13

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Solution

The fourth proportional to 21,027,809.87, 29,018,755.54 and 12,332,254.13 is: 17,018,732.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,027,809.87 : 29,018,755.54 = 12,332,254.13 : x
  2. Step 2: Convert to fraction form
    21,027,809.87/29,018,755.54 = 12,332,254.13/x
  3. Step 3: Cross multiply
    21,027,809.87x = 29,018,755.54 × 12,332,254.13
  4. Step 4: Simplify right side
    21,027,809.87x = 357,866,667,753,166.56
  5. Step 5: Solve for x
    x = 357,866,667,753,166.56/21,027,809.87
  6. Step 6: Final answer
    x = 17,018,732.34

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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.