Home / 658,598,855.04-987,989,127.75-382,380,153.60

Finding the Fourth Proportional to 658,598,855.04, 987,989,127.75 and 382,380,153.60

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Solution

The fourth proportional to 658,598,855.04, 987,989,127.75 and 382,380,153.60 is: 573,622,974.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,598,855.04 : 987,989,127.75 = 382,380,153.60 : x
  2. Step 2: Convert to fraction form
    658,598,855.04/987,989,127.75 = 382,380,153.60/x
  3. Step 3: Cross multiply
    658,598,855.04x = 987,989,127.75 × 382,380,153.60
  4. Step 4: Simplify right side
    658,598,855.04x = 377,787,434,424,175,040
  5. Step 5: Solve for x
    x = 377,787,434,424,175,040/658,598,855.04
  6. Step 6: Final answer
    x = 573,622,974.79

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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.