Home / 800,979,769.82-1,201,814,924.51-432,441,549.24

Finding the Fourth Proportional to 800,979,769.82, 1,201,814,924.51 and 432,441,549.24

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Solution

The fourth proportional to 800,979,769.82, 1,201,814,924.51 and 432,441,549.24 is: 648,848,731.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,979,769.82 : 1,201,814,924.51 = 432,441,549.24 : x
  2. Step 2: Convert to fraction form
    800,979,769.82/1,201,814,924.51 = 432,441,549.24/x
  3. Step 3: Cross multiply
    800,979,769.82x = 1,201,814,924.51 × 432,441,549.24
  4. Step 4: Simplify right side
    800,979,769.82x = 519,714,707,852,695,872
  5. Step 5: Solve for x
    x = 519,714,707,852,695,872/800,979,769.82
  6. Step 6: Final answer
    x = 648,848,731.81

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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.