Home / 698,893,172.97-964,492,765.88-385,647,559.17

Finding the Fourth Proportional to 698,893,172.97, 964,492,765.88 and 385,647,559.17

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Solution

The fourth proportional to 698,893,172.97, 964,492,765.88 and 385,647,559.17 is: 532,204,770.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,893,172.97 : 964,492,765.88 = 385,647,559.17 : x
  2. Step 2: Convert to fraction form
    698,893,172.97/964,492,765.88 = 385,647,559.17/x
  3. Step 3: Cross multiply
    698,893,172.97x = 964,492,765.88 × 385,647,559.17
  4. Step 4: Simplify right side
    698,893,172.97x = 371,954,280,996,816,064
  5. Step 5: Solve for x
    x = 371,954,280,996,816,064/698,893,172.97
  6. Step 6: Final answer
    x = 532,204,770.89

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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.