Home / 290,927,691.90-401,488,718.45-158,777,169.77

Finding the Fourth Proportional to 290,927,691.90, 401,488,718.45 and 158,777,169.77

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Solution

The fourth proportional to 290,927,691.90, 401,488,718.45 and 158,777,169.77 is: 219,117,135.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,927,691.90 : 401,488,718.45 = 158,777,169.77 : x
  2. Step 2: Convert to fraction form
    290,927,691.90/401,488,718.45 = 158,777,169.77/x
  3. Step 3: Cross multiply
    290,927,691.90x = 401,488,718.45 × 158,777,169.77
  4. Step 4: Simplify right side
    290,927,691.90x = 63,747,242,410,285,216
  5. Step 5: Solve for x
    x = 63,747,242,410,285,216/290,927,691.90
  6. Step 6: Final answer
    x = 219,117,135.24

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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.