Home / 219,175,648-302,458,687.68-121,388,404.48

Finding the Fourth Proportional to 219,175,648, 302,458,687.68 and 121,388,404.48

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Solution

The fourth proportional to 219,175,648, 302,458,687.68 and 121,388,404.48 is: 167,513,945.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,175,648 : 302,458,687.68 = 121,388,404.48 : x
  2. Step 2: Convert to fraction form
    219,175,648/302,458,687.68 = 121,388,404.48/x
  3. Step 3: Cross multiply
    219,175,648x = 302,458,687.68 × 121,388,404.48
  4. Step 4: Simplify right side
    219,175,648x = 36,714,977,518,589,832
  5. Step 5: Solve for x
    x = 36,714,977,518,589,832/219,175,648
  6. Step 6: Final answer
    x = 167,513,945.34

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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.