Home / 5,192,821.79-7,166,368.41-3,128,487.20

Finding the Fourth Proportional to 5,192,821.79, 7,166,368.41 and 3,128,487.20

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Solution

The fourth proportional to 5,192,821.79, 7,166,368.41 and 3,128,487.20 is: 4,317,477.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,192,821.79 : 7,166,368.41 = 3,128,487.20 : x
  2. Step 2: Convert to fraction form
    5,192,821.79/7,166,368.41 = 3,128,487.20/x
  3. Step 3: Cross multiply
    5,192,821.79x = 7,166,368.41 × 3,128,487.20
  4. Step 4: Simplify right side
    5,192,821.79x = 22,419,891,829,278.43
  5. Step 5: Solve for x
    x = 22,419,891,829,278.43/5,192,821.79
  6. Step 6: Final answer
    x = 4,317,477.62

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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.