Home / 131,049,017.96-180,913,117.38-81,505,361.48

Finding the Fourth Proportional to 131,049,017.96, 180,913,117.38 and 81,505,361.48

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Solution

The fourth proportional to 131,049,017.96, 180,913,117.38 and 81,505,361.48 is: 112,518,119.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,049,017.96 : 180,913,117.38 = 81,505,361.48 : x
  2. Step 2: Convert to fraction form
    131,049,017.96/180,913,117.38 = 81,505,361.48/x
  3. Step 3: Cross multiply
    131,049,017.96x = 180,913,117.38 × 81,505,361.48
  4. Step 4: Simplify right side
    131,049,017.96x = 14,745,389,028,530,570
  5. Step 5: Solve for x
    x = 14,745,389,028,530,570/131,049,017.96
  6. Step 6: Final answer
    x = 112,518,119.24

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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.