Home / 13,693,105.42-18,897,075.84-7,581,533.92

Finding the Fourth Proportional to 13,693,105.42, 18,897,075.84 and 7,581,533.92

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Solution

The fourth proportional to 13,693,105.42, 18,897,075.84 and 7,581,533.92 is: 10,462,843.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,693,105.42 : 18,897,075.84 = 7,581,533.92 : x
  2. Step 2: Convert to fraction form
    13,693,105.42/18,897,075.84 = 7,581,533.92/x
  3. Step 3: Cross multiply
    13,693,105.42x = 18,897,075.84 × 7,581,533.92
  4. Step 4: Simplify right side
    13,693,105.42x = 143,268,821,469,772.50
  5. Step 5: Solve for x
    x = 143,268,821,469,772.50/13,693,105.42
  6. Step 6: Final answer
    x = 10,462,843.68

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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.