Home / 505,592,631.80-758,388,947.70-142,086,987.80

Finding the Fourth Proportional to 505,592,631.80, 758,388,947.70 and 142,086,987.80

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Solution

The fourth proportional to 505,592,631.80, 758,388,947.70 and 142,086,987.80 is: 213,130,481.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,592,631.80 : 758,388,947.70 = 142,086,987.80 : x
  2. Step 2: Convert to fraction form
    505,592,631.80/758,388,947.70 = 142,086,987.80/x
  3. Step 3: Cross multiply
    505,592,631.80x = 758,388,947.70 × 142,086,987.80
  4. Step 4: Simplify right side
    505,592,631.80x = 107,757,201,159,504,752
  5. Step 5: Solve for x
    x = 107,757,201,159,504,752/505,592,631.80
  6. Step 6: Final answer
    x = 213,130,481.70

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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.