Home / 680,562,841.52-939,205,706.97-379,147,982.15

Finding the Fourth Proportional to 680,562,841.52, 939,205,706.97 and 379,147,982.15

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Solution

The fourth proportional to 680,562,841.52, 939,205,706.97 and 379,147,982.15 is: 523,240,363.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,562,841.52 : 939,205,706.97 = 379,147,982.15 : x
  2. Step 2: Convert to fraction form
    680,562,841.52/939,205,706.97 = 379,147,982.15/x
  3. Step 3: Cross multiply
    680,562,841.52x = 939,205,706.97 × 379,147,982.15
  4. Step 4: Simplify right side
    680,562,841.52x = 356,097,948,625,209,472
  5. Step 5: Solve for x
    x = 356,097,948,625,209,472/680,562,841.52
  6. Step 6: Final answer
    x = 523,240,363.56

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1.5x scale

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.