Home / 290,801,054.56-401,298,996.72-160,420,828

Finding the Fourth Proportional to 290,801,054.56, 401,298,996.72 and 160,420,828

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Solution

The fourth proportional to 290,801,054.56, 401,298,996.72 and 160,420,828 is: 221,377,179.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,801,054.56 : 401,298,996.72 = 160,420,828 : x
  2. Step 2: Convert to fraction form
    290,801,054.56/401,298,996.72 = 160,420,828/x
  3. Step 3: Cross multiply
    290,801,054.56x = 401,298,996.72 × 160,420,828
  4. Step 4: Simplify right side
    290,801,054.56x = 64,376,717,329,391,688
  5. Step 5: Solve for x
    x = 64,376,717,329,391,688/290,801,054.56
  6. Step 6: Final answer
    x = 221,377,179.76

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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.