Home / 7,168,778.62-9,892,884.84-3,905,583.32

Finding the Fourth Proportional to 7,168,778.62, 9,892,884.84 and 3,905,583.32

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Solution

The fourth proportional to 7,168,778.62, 9,892,884.84 and 3,905,583.32 is: 5,389,688.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,168,778.62 : 9,892,884.84 = 3,905,583.32 : x
  2. Step 2: Convert to fraction form
    7,168,778.62/9,892,884.84 = 3,905,583.32/x
  3. Step 3: Cross multiply
    7,168,778.62x = 9,892,884.84 × 3,905,583.32
  4. Step 4: Simplify right side
    7,168,778.62x = 38,637,486,017,784.87
  5. Step 5: Solve for x
    x = 38,637,486,017,784.87/7,168,778.62
  6. Step 6: Final answer
    x = 5,389,688.83

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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.