Home / 80,629,869-111,278,665.58-45,827,790.80

Finding the Fourth Proportional to 80,629,869, 111,278,665.58 and 45,827,790.80

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Solution

The fourth proportional to 80,629,869, 111,278,665.58 and 45,827,790.80 is: 63,247,720.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,629,869 : 111,278,665.58 = 45,827,790.80 : x
  2. Step 2: Convert to fraction form
    80,629,869/111,278,665.58 = 45,827,790.80/x
  3. Step 3: Cross multiply
    80,629,869x = 111,278,665.58 × 45,827,790.80
  4. Step 4: Simplify right side
    80,629,869x = 5,099,655,406,703,400
  5. Step 5: Solve for x
    x = 5,099,655,406,703,400/80,629,869
  6. Step 6: Final answer
    x = 63,247,720.35

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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.