Home / 13,637,907.87-18,820,751.98-7,757,391.24

Finding the Fourth Proportional to 13,637,907.87, 18,820,751.98 and 7,757,391.24

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Solution

The fourth proportional to 13,637,907.87, 18,820,751.98 and 7,757,391.24 is: 10,705,449.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637,907.87 : 18,820,751.98 = 7,757,391.24 : x
  2. Step 2: Convert to fraction form
    13,637,907.87/18,820,751.98 = 7,757,391.24/x
  3. Step 3: Cross multiply
    13,637,907.87x = 18,820,751.98 × 7,757,391.24
  4. Step 4: Simplify right side
    13,637,907.87x = 145,999,936,449,356.38
  5. Step 5: Solve for x
    x = 145,999,936,449,356.38/13,637,907.87
  6. Step 6: Final answer
    x = 10,705,449.68

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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.