Home / 513,180,651.25-708,204,238.45-290,157,544.56

Finding the Fourth Proportional to 513,180,651.25, 708,204,238.45 and 290,157,544.56

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Solution

The fourth proportional to 513,180,651.25, 708,204,238.45 and 290,157,544.56 is: 400,425,858.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,180,651.25 : 708,204,238.45 = 290,157,544.56 : x
  2. Step 2: Convert to fraction form
    513,180,651.25/708,204,238.45 = 290,157,544.56/x
  3. Step 3: Cross multiply
    513,180,651.25x = 708,204,238.45 × 290,157,544.56
  4. Step 4: Simplify right side
    513,180,651.25x = 205,490,802,875,211,904
  5. Step 5: Solve for x
    x = 205,490,802,875,211,904/513,180,651.25
  6. Step 6: Final answer
    x = 400,425,858.57

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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.