Home / 7,980,939.74-11,971,409.78-1,915,671.47

Finding the Fourth Proportional to 7,980,939.74, 11,971,409.78 and 1,915,671.47

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Solution

The fourth proportional to 7,980,939.74, 11,971,409.78 and 1,915,671.47 is: 2,873,507.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980,939.74 : 11,971,409.78 = 1,915,671.47 : x
  2. Step 2: Convert to fraction form
    7,980,939.74/11,971,409.78 = 1,915,671.47/x
  3. Step 3: Cross multiply
    7,980,939.74x = 11,971,409.78 × 1,915,671.47
  4. Step 4: Simplify right side
    7,980,939.74x = 22,933,288,172,720.64
  5. Step 5: Solve for x
    x = 22,933,288,172,720.64/7,980,939.74
  6. Step 6: Final answer
    x = 2,873,507.24

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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.