Home / 73,143,079.80-109,714,619.70-66,446,923.20

Finding the Fourth Proportional to 73,143,079.80, 109,714,619.70 and 66,446,923.20

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Solution

The fourth proportional to 73,143,079.80, 109,714,619.70 and 66,446,923.20 is: 99,670,384.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,143,079.80 : 109,714,619.70 = 66,446,923.20 : x
  2. Step 2: Convert to fraction form
    73,143,079.80/109,714,619.70 = 66,446,923.20/x
  3. Step 3: Cross multiply
    73,143,079.80x = 109,714,619.70 × 66,446,923.20
  4. Step 4: Simplify right side
    73,143,079.80x = 7,290,198,909,123,108
  5. Step 5: Solve for x
    x = 7,290,198,909,123,108/73,143,079.80
  6. Step 6: Final answer
    x = 99,670,384.80

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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.