Home / 7,831,609.89-11,747,981.02-3,278,079.06

Finding the Fourth Proportional to 7,831,609.89, 11,747,981.02 and 3,278,079.06

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Solution

The fourth proportional to 7,831,609.89, 11,747,981.02 and 3,278,079.06 is: 4,917,355.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831,609.89 : 11,747,981.02 = 3,278,079.06 : x
  2. Step 2: Convert to fraction form
    7,831,609.89/11,747,981.02 = 3,278,079.06/x
  3. Step 3: Cross multiply
    7,831,609.89x = 11,747,981.02 × 3,278,079.06
  4. Step 4: Simplify right side
    7,831,609.89x = 38,510,810,503,809.15
  5. Step 5: Solve for x
    x = 38,510,810,503,809.15/7,831,609.89
  6. Step 6: Final answer
    x = 4,917,355.57

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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.