Home / 3,990,550-5,507,095.08-2,179,830.64

Finding the Fourth Proportional to 3,990,550, 5,507,095.08 and 2,179,830.64

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Solution

The fourth proportional to 3,990,550, 5,507,095.08 and 2,179,830.64 is: 3,008,240.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990,550 : 5,507,095.08 = 2,179,830.64 : x
  2. Step 2: Convert to fraction form
    3,990,550/5,507,095.08 = 2,179,830.64/x
  3. Step 3: Cross multiply
    3,990,550x = 5,507,095.08 × 2,179,830.64
  4. Step 4: Simplify right side
    3,990,550x = 12,004,534,592,777.25
  5. Step 5: Solve for x
    x = 12,004,534,592,777.25/3,990,550
  6. Step 6: Final answer
    x = 3,008,240.62

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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.