Home / 290,914,265.81-401,470,214.13-158,763,759.21

Finding the Fourth Proportional to 290,914,265.81, 401,470,214.13 and 158,763,759.21

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Solution

The fourth proportional to 290,914,265.81, 401,470,214.13 and 158,763,759.21 is: 219,098,641.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,914,265.81 : 401,470,214.13 = 158,763,759.21 : x
  2. Step 2: Convert to fraction form
    290,914,265.81/401,470,214.13 = 158,763,759.21/x
  3. Step 3: Cross multiply
    290,914,265.81x = 401,470,214.13 × 158,763,759.21
  4. Step 4: Simplify right side
    290,914,265.81x = 63,738,920,406,122,464
  5. Step 5: Solve for x
    x = 63,738,920,406,122,464/290,914,265.81
  6. Step 6: Final answer
    x = 219,098,641.41

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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.