Home / 13,147,571.80-19,724,813.70-4,172,109.40

Finding the Fourth Proportional to 13,147,571.80, 19,724,813.70 and 4,172,109.40

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Solution

The fourth proportional to 13,147,571.80, 19,724,813.70 and 4,172,109.40 is: 6,259,260.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,147,571.80 : 19,724,813.70 = 4,172,109.40 : x
  2. Step 2: Convert to fraction form
    13,147,571.80/19,724,813.70 = 4,172,109.40/x
  3. Step 3: Cross multiply
    13,147,571.80x = 19,724,813.70 × 4,172,109.40
  4. Step 4: Simplify right side
    13,147,571.80x = 82,294,080,651,018.78
  5. Step 5: Solve for x
    x = 82,294,080,651,018.78/13,147,571.80
  6. Step 6: Final answer
    x = 6,259,260.79

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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.