Home / 80,493,812.96-111,091,499.40-45,697,768.16

Finding the Fourth Proportional to 80,493,812.96, 111,091,499.40 and 45,697,768.16

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Solution

The fourth proportional to 80,493,812.96, 111,091,499.40 and 45,697,768.16 is: 63,068,618.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,493,812.96 : 111,091,499.40 = 45,697,768.16 : x
  2. Step 2: Convert to fraction form
    80,493,812.96/111,091,499.40 = 45,697,768.16/x
  3. Step 3: Cross multiply
    80,493,812.96x = 111,091,499.40 × 45,697,768.16
  4. Step 4: Simplify right side
    80,493,812.96x = 5,076,633,584,127,979
  5. Step 5: Solve for x
    x = 5,076,633,584,127,979/80,493,812.96
  6. Step 6: Final answer
    x = 63,068,618.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.