Home / 10,075,668.78-13,904,561.07-5,491,980.30

Finding the Fourth Proportional to 10,075,668.78, 13,904,561.07 and 5,491,980.30

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Solution

The fourth proportional to 10,075,668.78, 13,904,561.07 and 5,491,980.30 is: 7,579,008.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,075,668.78 : 13,904,561.07 = 5,491,980.30 : x
  2. Step 2: Convert to fraction form
    10,075,668.78/13,904,561.07 = 5,491,980.30/x
  3. Step 3: Cross multiply
    10,075,668.78x = 13,904,561.07 × 5,491,980.30
  4. Step 4: Simplify right side
    10,075,668.78x = 76,363,575,476,586.92
  5. Step 5: Solve for x
    x = 76,363,575,476,586.92/10,075,668.78
  6. Step 6: Final answer
    x = 7,579,008.12

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1.5x scale

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.