Home / 678,620,490.80-1,017,930,736.20-334,246,722.80

Finding the Fourth Proportional to 678,620,490.80, 1,017,930,736.20 and 334,246,722.80

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Solution

The fourth proportional to 678,620,490.80, 1,017,930,736.20 and 334,246,722.80 is: 501,370,084.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,620,490.80 : 1,017,930,736.20 = 334,246,722.80 : x
  2. Step 2: Convert to fraction form
    678,620,490.80/1,017,930,736.20 = 334,246,722.80/x
  3. Step 3: Cross multiply
    678,620,490.80x = 1,017,930,736.20 × 334,246,722.80
  4. Step 4: Simplify right side
    678,620,490.80x = 340,240,012,612,241,344
  5. Step 5: Solve for x
    x = 340,240,012,612,241,344/678,620,490.80
  6. Step 6: Final answer
    x = 501,370,084.20

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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.