Home / 105,003,003.20-157,504,504.80-68,723,297.60

Finding the Fourth Proportional to 105,003,003.20, 157,504,504.80 and 68,723,297.60

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Solution

The fourth proportional to 105,003,003.20, 157,504,504.80 and 68,723,297.60 is: 103,084,946.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,003,003.20 : 157,504,504.80 = 68,723,297.60 : x
  2. Step 2: Convert to fraction form
    105,003,003.20/157,504,504.80 = 68,723,297.60/x
  3. Step 3: Cross multiply
    105,003,003.20x = 157,504,504.80 × 68,723,297.60
  4. Step 4: Simplify right side
    105,003,003.20x = 10,824,228,956,711,028
  5. Step 5: Solve for x
    x = 10,824,228,956,711,028/105,003,003.20
  6. Step 6: Final answer
    x = 103,084,946.40

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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.