Home / 3,631,890.80-5,011,812.74-1,999,979.21

Finding the Fourth Proportional to 3,631,890.80, 5,011,812.74 and 1,999,979.21

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Solution

The fourth proportional to 3,631,890.80, 5,011,812.74 and 1,999,979.21 is: 2,759,863.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631,890.80 : 5,011,812.74 = 1,999,979.21 : x
  2. Step 2: Convert to fraction form
    3,631,890.80/5,011,812.74 = 1,999,979.21/x
  3. Step 3: Cross multiply
    3,631,890.80x = 5,011,812.74 × 1,999,979.21
  4. Step 4: Simplify right side
    3,631,890.80x = 10,023,521,249,354.18
  5. Step 5: Solve for x
    x = 10,023,521,249,354.18/3,631,890.80
  6. Step 6: Final answer
    x = 2,759,863.06

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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.