Home / 7,165,350.21-9,888,115.30-3,902,219.45

Finding the Fourth Proportional to 7,165,350.21, 9,888,115.30 and 3,902,219.45

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Solution

The fourth proportional to 7,165,350.21, 9,888,115.30 and 3,902,219.45 is: 5,385,025.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165,350.21 : 9,888,115.30 = 3,902,219.45 : x
  2. Step 2: Convert to fraction form
    7,165,350.21/9,888,115.30 = 3,902,219.45/x
  3. Step 3: Cross multiply
    7,165,350.21x = 9,888,115.30 × 3,902,219.45
  4. Step 4: Simplify right side
    7,165,350.21x = 38,585,595,825,386.89
  5. Step 5: Solve for x
    x = 38,585,595,825,386.89/7,165,350.21
  6. Step 6: Final answer
    x = 5,385,025.81

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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.