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Finding the Fourth Proportional to 73,743,608.40, 110,615,412.60 and 19,151,714.40

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Solution

The fourth proportional to 73,743,608.40, 110,615,412.60 and 19,151,714.40 is: 28,727,571.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,743,608.40 : 110,615,412.60 = 19,151,714.40 : x
  2. Step 2: Convert to fraction form
    73,743,608.40/110,615,412.60 = 19,151,714.40/x
  3. Step 3: Cross multiply
    73,743,608.40x = 110,615,412.60 × 19,151,714.40
  4. Step 4: Simplify right side
    73,743,608.40x = 2,118,474,790,353,361.25
  5. Step 5: Solve for x
    x = 2,118,474,790,353,361.25/73,743,608.40
  6. Step 6: Final answer
    x = 28,727,571.60

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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.