Home / 7,421,711.90-11,131,401.45-2,628,715.10

Finding the Fourth Proportional to 7,421,711.90, 11,131,401.45 and 2,628,715.10

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Solution

The fourth proportional to 7,421,711.90, 11,131,401.45 and 2,628,715.10 is: 3,942,659.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421,711.90 : 11,131,401.45 = 2,628,715.10 : x
  2. Step 2: Convert to fraction form
    7,421,711.90/11,131,401.45 = 2,628,715.10/x
  3. Step 3: Cross multiply
    7,421,711.90x = 11,131,401.45 × 2,628,715.10
  4. Step 4: Simplify right side
    7,421,711.90x = 29,261,283,075,776.89
  5. Step 5: Solve for x
    x = 29,261,283,075,776.89/7,421,711.90
  6. Step 6: Final answer
    x = 3,942,659.52

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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.