Home / 5,213,612.80-7,820,419.20-1,619,351.20

Finding the Fourth Proportional to 5,213,612.80, 7,820,419.20 and 1,619,351.20

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Solution

The fourth proportional to 5,213,612.80, 7,820,419.20 and 1,619,351.20 is: 2,429,026.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213,612.80 : 7,820,419.20 = 1,619,351.20 : x
  2. Step 2: Convert to fraction form
    5,213,612.80/7,820,419.20 = 1,619,351.20/x
  3. Step 3: Cross multiply
    5,213,612.80x = 7,820,419.20 × 1,619,351.20
  4. Step 4: Simplify right side
    5,213,612.80x = 12,664,005,216,023.04
  5. Step 5: Solve for x
    x = 12,664,005,216,023.04/5,213,612.80
  6. Step 6: Final answer
    x = 2,429,026.80

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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.