Home / 109,147,812.80-163,784,704.80-40,997,393.60

Finding the Fourth Proportional to 109,147,812.80, 163,784,704.80 and 40,997,393.60

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Solution

The fourth proportional to 109,147,812.80, 163,784,704.80 and 40,997,393.60 is: 61,519,748.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,147,812.80 : 163,784,704.80 = 40,997,393.60 : x
  2. Step 2: Convert to fraction form
    109,147,812.80/163,784,704.80 = 40,997,393.60/x
  3. Step 3: Cross multiply
    109,147,812.80x = 163,784,704.80 × 40,997,393.60
  4. Step 4: Simplify right side
    109,147,812.80x = 6,714,746,008,345,410
  5. Step 5: Solve for x
    x = 6,714,746,008,345,410/109,147,812.80
  6. Step 6: Final answer
    x = 61,519,748.64

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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.