Home / 403,824,287.20-605,736,430.80-307,078,405.60

Finding the Fourth Proportional to 403,824,287.20, 605,736,430.80 and 307,078,405.60

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Solution

The fourth proportional to 403,824,287.20, 605,736,430.80 and 307,078,405.60 is: 460,617,608.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,824,287.20 : 605,736,430.80 = 307,078,405.60 : x
  2. Step 2: Convert to fraction form
    403,824,287.20/605,736,430.80 = 307,078,405.60/x
  3. Step 3: Cross multiply
    403,824,287.20x = 605,736,430.80 × 307,078,405.60
  4. Step 4: Simplify right side
    403,824,287.20x = 186,008,577,383,898,720
  5. Step 5: Solve for x
    x = 186,008,577,383,898,720/403,824,287.20
  6. Step 6: Final answer
    x = 460,617,608.40

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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.