Home / 920,122,028.82-1,379,931,656.22-329,802,240.06

Finding the Fourth Proportional to 920,122,028.82, 1,379,931,656.22 and 329,802,240.06

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Solution

The fourth proportional to 920,122,028.82, 1,379,931,656.22 and 329,802,240.06 is: 494,613,254.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,122,028.82 : 1,379,931,656.22 = 329,802,240.06 : x
  2. Step 2: Convert to fraction form
    920,122,028.82/1,379,931,656.22 = 329,802,240.06/x
  3. Step 3: Cross multiply
    920,122,028.82x = 1,379,931,656.22 × 329,802,240.06
  4. Step 4: Simplify right side
    920,122,028.82x = 455,104,551,351,061,824
  5. Step 5: Solve for x
    x = 455,104,551,351,061,824/920,122,028.82
  6. Step 6: Final answer
    x = 494,613,254.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.