Home / 7,881,604.40-11,821,531.80-6,459,179.60

Finding the Fourth Proportional to 7,881,604.40, 11,821,531.80 and 6,459,179.60

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Solution

The fourth proportional to 7,881,604.40, 11,821,531.80 and 6,459,179.60 is: 9,688,052.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881,604.40 : 11,821,531.80 = 6,459,179.60 : x
  2. Step 2: Convert to fraction form
    7,881,604.40/11,821,531.80 = 6,459,179.60/x
  3. Step 3: Cross multiply
    7,881,604.40x = 11,821,531.80 × 6,459,179.60
  4. Step 4: Simplify right side
    7,881,604.40x = 76,357,397,043,311.28
  5. Step 5: Solve for x
    x = 76,357,397,043,311.28/7,881,604.40
  6. Step 6: Final answer
    x = 9,688,052.48

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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.