Home / 505,592,629.80-758,388,944.70-142,086,985.80

Finding the Fourth Proportional to 505,592,629.80, 758,388,944.70 and 142,086,985.80

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Solution

The fourth proportional to 505,592,629.80, 758,388,944.70 and 142,086,985.80 is: 213,130,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,592,629.80 : 758,388,944.70 = 142,086,985.80 : x
  2. Step 2: Convert to fraction form
    505,592,629.80/758,388,944.70 = 142,086,985.80/x
  3. Step 3: Cross multiply
    505,592,629.80x = 758,388,944.70 × 142,086,985.80
  4. Step 4: Simplify right side
    505,592,629.80x = 107,757,199,216,465,904
  5. Step 5: Solve for x
    x = 107,757,199,216,465,904/505,592,629.80
  6. Step 6: Final answer
    x = 213,130,478.70

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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.