Home / 7,075,395.36-9,764,391.24-3,978,892.80

Finding the Fourth Proportional to 7,075,395.36, 9,764,391.24 and 3,978,892.80

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Solution

The fourth proportional to 7,075,395.36, 9,764,391.24 and 3,978,892.80 is: 5,491,066.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,075,395.36 : 9,764,391.24 = 3,978,892.80 : x
  2. Step 2: Convert to fraction form
    7,075,395.36/9,764,391.24 = 3,978,892.80/x
  3. Step 3: Cross multiply
    7,075,395.36x = 9,764,391.24 × 3,978,892.80
  4. Step 4: Simplify right side
    7,075,395.36x = 38,851,466,001,219.07
  5. Step 5: Solve for x
    x = 38,851,466,001,219.07/7,075,395.36
  6. Step 6: Final answer
    x = 5,491,066.44

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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.