Home / 80,629,863-111,278,657.30-45,827,784.81

Finding the Fourth Proportional to 80,629,863, 111,278,657.30 and 45,827,784.81

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Solution

The fourth proportional to 80,629,863, 111,278,657.30 and 45,827,784.81 is: 63,247,712.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,629,863 : 111,278,657.30 = 45,827,784.81 : x
  2. Step 2: Convert to fraction form
    80,629,863/111,278,657.30 = 45,827,784.81/x
  3. Step 3: Cross multiply
    80,629,863x = 111,278,657.30 × 45,827,784.81
  4. Step 4: Simplify right side
    80,629,863x = 5,099,654,360,690,136
  5. Step 5: Solve for x
    x = 5,099,654,360,690,136/80,629,863
  6. Step 6: Final answer
    x = 63,247,712.09

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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.