Home / 5,221,707.45-7,830,787.18-1,809,197.51

Finding the Fourth Proportional to 5,221,707.45, 7,830,787.18 and 1,809,197.51

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Solution

The fourth proportional to 5,221,707.45, 7,830,787.18 and 1,809,197.51 is: 2,713,181.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221,707.45 : 7,830,787.18 = 1,809,197.51 : x
  2. Step 2: Convert to fraction form
    5,221,707.45/7,830,787.18 = 1,809,197.51/x
  3. Step 3: Cross multiply
    5,221,707.45x = 7,830,787.18 × 1,809,197.51
  4. Step 4: Simplify right side
    5,221,707.45x = 14,167,440,667,395.92
  5. Step 5: Solve for x
    x = 14,167,440,667,395.92/5,221,707.45
  6. Step 6: Final answer
    x = 2,713,181.62

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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.