Home / 1,147,395,131.43-1,717,530,008.49-621,457,964.79

Finding the Fourth Proportional to 1,147,395,131.43, 1,717,530,008.49 and 621,457,964.79

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Solution

The fourth proportional to 1,147,395,131.43, 1,717,530,008.49 and 621,457,964.79 is: 930,257,305.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,395,131.43 : 1,717,530,008.49 = 621,457,964.79 : x
  2. Step 2: Convert to fraction form
    1,147,395,131.43/1,717,530,008.49 = 621,457,964.79/x
  3. Step 3: Cross multiply
    1,147,395,131.43x = 1,717,530,008.49 × 621,457,964.79
  4. Step 4: Simplify right side
    1,147,395,131.43x = 1,067,372,703,541,946,752
  5. Step 5: Solve for x
    x = 1,067,372,703,541,946,752/1,147,395,131.43
  6. Step 6: Final answer
    x = 930,257,305.70

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Double scale
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1.5x scale

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.