Home / 445,830,309.60-668,745,464.40-336,991,192.80

Finding the Fourth Proportional to 445,830,309.60, 668,745,464.40 and 336,991,192.80

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Solution

The fourth proportional to 445,830,309.60, 668,745,464.40 and 336,991,192.80 is: 505,486,789.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,830,309.60 : 668,745,464.40 = 336,991,192.80 : x
  2. Step 2: Convert to fraction form
    445,830,309.60/668,745,464.40 = 336,991,192.80/x
  3. Step 3: Cross multiply
    445,830,309.60x = 668,745,464.40 × 336,991,192.80
  4. Step 4: Simplify right side
    445,830,309.60x = 225,361,331,727,745,952
  5. Step 5: Solve for x
    x = 225,361,331,727,745,952/445,830,309.60
  6. Step 6: Final answer
    x = 505,486,789.20

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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.