Home / 505,502,287.20-758,337,411.60-198,804,405.60

Finding the Fourth Proportional to 505,502,287.20, 758,337,411.60 and 198,804,405.60

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Solution

The fourth proportional to 505,502,287.20, 758,337,411.60 and 198,804,405.60 is: 298,239,636.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,502,287.20 : 758,337,411.60 = 198,804,405.60 : x
  2. Step 2: Convert to fraction form
    505,502,287.20/758,337,411.60 = 198,804,405.60/x
  3. Step 3: Cross multiply
    505,502,287.20x = 758,337,411.60 × 198,804,405.60
  4. Step 4: Simplify right side
    505,502,287.20x = 150,760,818,357,380,544
  5. Step 5: Solve for x
    x = 150,760,818,357,380,544/505,502,287.20
  6. Step 6: Final answer
    x = 298,239,636.45

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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.