Home / 6,419,802.31-8,858,381.04-3,903,893.57

Finding the Fourth Proportional to 6,419,802.31, 8,858,381.04 and 3,903,893.57

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Solution

The fourth proportional to 6,419,802.31, 8,858,381.04 and 3,903,893.57 is: 5,386,797.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,419,802.31 : 8,858,381.04 = 3,903,893.57 : x
  2. Step 2: Convert to fraction form
    6,419,802.31/8,858,381.04 = 3,903,893.57/x
  3. Step 3: Cross multiply
    6,419,802.31x = 8,858,381.04 × 3,903,893.57
  4. Step 4: Simplify right side
    6,419,802.31x = 34,582,176,804,811.86
  5. Step 5: Solve for x
    x = 34,582,176,804,811.86/6,419,802.31
  6. Step 6: Final answer
    x = 5,386,797.78

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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.