Home / 131,305,884.86-181,285,691.22-81,818,960.07

Finding the Fourth Proportional to 131,305,884.86, 181,285,691.22 and 81,818,960.07

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Solution

The fourth proportional to 131,305,884.86, 181,285,691.22 and 81,818,960.07 is: 112,962,238.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,305,884.86 : 181,285,691.22 = 81,818,960.07 : x
  2. Step 2: Convert to fraction form
    131,305,884.86/181,285,691.22 = 81,818,960.07/x
  3. Step 3: Cross multiply
    131,305,884.86x = 181,285,691.22 × 81,818,960.07
  4. Step 4: Simplify right side
    131,305,884.86x = 14,832,606,730,505,524
  5. Step 5: Solve for x
    x = 14,832,606,730,505,524/131,305,884.86
  6. Step 6: Final answer
    x = 112,962,238.87

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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.