Home / 3,179,023.68-4,387,168.04-1,821,159.12

Finding the Fourth Proportional to 3,179,023.68, 4,387,168.04 and 1,821,159.12

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Solution

The fourth proportional to 3,179,023.68, 4,387,168.04 and 1,821,159.12 is: 2,513,265.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179,023.68 : 4,387,168.04 = 1,821,159.12 : x
  2. Step 2: Convert to fraction form
    3,179,023.68/4,387,168.04 = 1,821,159.12/x
  3. Step 3: Cross multiply
    3,179,023.68x = 4,387,168.04 × 1,821,159.12
  4. Step 4: Simplify right side
    3,179,023.68x = 7,989,731,087,018.53
  5. Step 5: Solve for x
    x = 7,989,731,087,018.53/3,179,023.68
  6. Step 6: Final answer
    x = 2,513,265.67

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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.