Home / 131,726,019.07-181,781,728.03-72,992,487.75

Finding the Fourth Proportional to 131,726,019.07, 181,781,728.03 and 72,992,487.75

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Solution

The fourth proportional to 131,726,019.07, 181,781,728.03 and 72,992,487.75 is: 100,729,534.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,726,019.07 : 181,781,728.03 = 72,992,487.75 : x
  2. Step 2: Convert to fraction form
    131,726,019.07/181,781,728.03 = 72,992,487.75/x
  3. Step 3: Cross multiply
    131,726,019.07x = 181,781,728.03 × 72,992,487.75
  4. Step 4: Simplify right side
    131,726,019.07x = 13,268,700,556,403,606
  5. Step 5: Solve for x
    x = 13,268,700,556,403,606/131,726,019.07
  6. Step 6: Final answer
    x = 100,729,534.30

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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.