Home / 489,175,186.50-674,839,317.60-290,824,134.21

Finding the Fourth Proportional to 489,175,186.50, 674,839,317.60 and 290,824,134.21

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Solution

The fourth proportional to 489,175,186.50, 674,839,317.60 and 290,824,134.21 is: 401,205,060.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,175,186.50 : 674,839,317.60 = 290,824,134.21 : x
  2. Step 2: Convert to fraction form
    489,175,186.50/674,839,317.60 = 290,824,134.21/x
  3. Step 3: Cross multiply
    489,175,186.50x = 674,839,317.60 × 290,824,134.21
  4. Step 4: Simplify right side
    489,175,186.50x = 196,259,560,271,887,200
  5. Step 5: Solve for x
    x = 196,259,560,271,887,200/489,175,186.50
  6. Step 6: Final answer
    x = 401,205,060.45

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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.