Home / 521,855,752.96-720,161,400.72-286,910,410.24

Finding the Fourth Proportional to 521,855,752.96, 720,161,400.72 and 286,910,410.24

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Solution

The fourth proportional to 521,855,752.96, 720,161,400.72 and 286,910,410.24 is: 395,936,619.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,855,752.96 : 720,161,400.72 = 286,910,410.24 : x
  2. Step 2: Convert to fraction form
    521,855,752.96/720,161,400.72 = 286,910,410.24/x
  3. Step 3: Cross multiply
    521,855,752.96x = 720,161,400.72 × 286,910,410.24
  4. Step 4: Simplify right side
    521,855,752.96x = 206,621,802,919,588,256
  5. Step 5: Solve for x
    x = 206,621,802,919,588,256/521,855,752.96
  6. Step 6: Final answer
    x = 395,936,619.93

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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.