Home / 7,812,419.40-11,718,629.10-4,789,110.60

Finding the Fourth Proportional to 7,812,419.40, 11,718,629.10 and 4,789,110.60

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Solution

The fourth proportional to 7,812,419.40, 11,718,629.10 and 4,789,110.60 is: 7,183,665.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,812,419.40 : 11,718,629.10 = 4,789,110.60 : x
  2. Step 2: Convert to fraction form
    7,812,419.40/11,718,629.10 = 4,789,110.60/x
  3. Step 3: Cross multiply
    7,812,419.40x = 11,718,629.10 × 4,789,110.60
  4. Step 4: Simplify right side
    7,812,419.40x = 56,121,810,840,278.45
  5. Step 5: Solve for x
    x = 56,121,810,840,278.45/7,812,419.40
  6. Step 6: Final answer
    x = 7,183,665.90

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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.