Home / 72,839,409.70-109,259,114.55-72,414,256.90

Finding the Fourth Proportional to 72,839,409.70, 109,259,114.55 and 72,414,256.90

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Solution

The fourth proportional to 72,839,409.70, 109,259,114.55 and 72,414,256.90 is: 108,621,385.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,839,409.70 : 109,259,114.55 = 72,414,256.90 : x
  2. Step 2: Convert to fraction form
    72,839,409.70/109,259,114.55 = 72,414,256.90/x
  3. Step 3: Cross multiply
    72,839,409.70x = 109,259,114.55 × 72,414,256.90
  4. Step 4: Simplify right side
    72,839,409.70x = 7,911,917,589,690,228
  5. Step 5: Solve for x
    x = 7,911,917,589,690,228/72,839,409.70
  6. Step 6: Final answer
    x = 108,621,385.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.