Home / 270,821,816.72-405,991,805.16-117,384,171.20

Finding the Fourth Proportional to 270,821,816.72, 405,991,805.16 and 117,384,171.20

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Solution

The fourth proportional to 270,821,816.72, 405,991,805.16 and 117,384,171.20 is: 175,971,833.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,821,816.72 : 405,991,805.16 = 117,384,171.20 : x
  2. Step 2: Convert to fraction form
    270,821,816.72/405,991,805.16 = 117,384,171.20/x
  3. Step 3: Cross multiply
    270,821,816.72x = 405,991,805.16 × 117,384,171.20
  4. Step 4: Simplify right side
    270,821,816.72x = 47,657,011,562,698,488
  5. Step 5: Solve for x
    x = 47,657,011,562,698,488/270,821,816.72
  6. Step 6: Final answer
    x = 175,971,833.21

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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.