Home / 19,570,100.86-27,020,249.94-12,231,232.78

Finding the Fourth Proportional to 19,570,100.86, 27,020,249.94 and 12,231,232.78

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Solution

The fourth proportional to 19,570,100.86, 27,020,249.94 and 12,231,232.78 is: 16,887,545.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,570,100.86 : 27,020,249.94 = 12,231,232.78 : x
  2. Step 2: Convert to fraction form
    19,570,100.86/27,020,249.94 = 12,231,232.78/x
  3. Step 3: Cross multiply
    19,570,100.86x = 27,020,249.94 × 12,231,232.78
  4. Step 4: Simplify right side
    19,570,100.86x = 330,490,966,789,921.06
  5. Step 5: Solve for x
    x = 330,490,966,789,921.06/19,570,100.86
  6. Step 6: Final answer
    x = 16,887,545.40

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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.