Home / 556,588,171.72-768,008,357.22-318,395,485

Finding the Fourth Proportional to 556,588,171.72, 768,008,357.22 and 318,395,485

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Solution

The fourth proportional to 556,588,171.72, 768,008,357.22 and 318,395,485 is: 439,338,106.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,588,171.72 : 768,008,357.22 = 318,395,485 : x
  2. Step 2: Convert to fraction form
    556,588,171.72/768,008,357.22 = 318,395,485/x
  3. Step 3: Cross multiply
    556,588,171.72x = 768,008,357.22 × 318,395,485
  4. Step 4: Simplify right side
    556,588,171.72x = 244,530,393,381,115,168
  5. Step 5: Solve for x
    x = 244,530,393,381,115,168/556,588,171.72
  6. Step 6: Final answer
    x = 439,338,106.35

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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.