Home / 10,939,939.20-16,409,908.80-7,538,716.80

Finding the Fourth Proportional to 10,939,939.20, 16,409,908.80 and 7,538,716.80

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Solution

The fourth proportional to 10,939,939.20, 16,409,908.80 and 7,538,716.80 is: 11,308,075.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,939,939.20 : 16,409,908.80 = 7,538,716.80 : x
  2. Step 2: Convert to fraction form
    10,939,939.20/16,409,908.80 = 7,538,716.80/x
  3. Step 3: Cross multiply
    10,939,939.20x = 16,409,908.80 × 7,538,716.80
  4. Step 4: Simplify right side
    10,939,939.20x = 123,709,655,157,027.84
  5. Step 5: Solve for x
    x = 123,709,655,157,027.84/10,939,939.20
  6. Step 6: Final answer
    x = 11,308,075.20

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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.