Home / 131,726,021.07-181,781,730.78-72,992,489.76

Finding the Fourth Proportional to 131,726,021.07, 181,781,730.78 and 72,992,489.76

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Solution

The fourth proportional to 131,726,021.07, 181,781,730.78 and 72,992,489.76 is: 100,729,537.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,726,021.07 : 181,781,730.78 = 72,992,489.76 : x
  2. Step 2: Convert to fraction form
    131,726,021.07/181,781,730.78 = 72,992,489.76/x
  3. Step 3: Cross multiply
    131,726,021.07x = 181,781,730.78 × 72,992,489.76
  4. Step 4: Simplify right side
    131,726,021.07x = 13,268,701,122,514,228
  5. Step 5: Solve for x
    x = 13,268,701,122,514,228/131,726,021.07
  6. Step 6: Final answer
    x = 100,729,537.07

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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.