Home / 1,472,201,729.21-2,031,605,687.34-812,151,832.25

Finding the Fourth Proportional to 1,472,201,729.21, 2,031,605,687.34 and 812,151,832.25

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Solution

The fourth proportional to 1,472,201,729.21, 2,031,605,687.34 and 812,151,832.25 is: 1,120,751,489.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472,201,729.21 : 2,031,605,687.34 = 812,151,832.25 : x
  2. Step 2: Convert to fraction form
    1,472,201,729.21/2,031,605,687.34 = 812,151,832.25/x
  3. Step 3: Cross multiply
    1,472,201,729.21x = 2,031,605,687.34 × 812,151,832.25
  4. Step 4: Simplify right side
    1,472,201,729.21x = 1,649,972,281,382,701,568
  5. Step 5: Solve for x
    x = 1,649,972,281,382,701,568/1,472,201,729.21
  6. Step 6: Final answer
    x = 1,120,751,489.86

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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.