Home / 698,761,816.20-1,048,142,724.30-214,024,638.60

Finding the Fourth Proportional to 698,761,816.20, 1,048,142,724.30 and 214,024,638.60

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Solution

The fourth proportional to 698,761,816.20, 1,048,142,724.30 and 214,024,638.60 is: 321,036,957.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,761,816.20 : 1,048,142,724.30 = 214,024,638.60 : x
  2. Step 2: Convert to fraction form
    698,761,816.20/1,048,142,724.30 = 214,024,638.60/x
  3. Step 3: Cross multiply
    698,761,816.20x = 1,048,142,724.30 × 214,024,638.60
  4. Step 4: Simplify right side
    698,761,816.20x = 224,328,367,769,526,912
  5. Step 5: Solve for x
    x = 224,328,367,769,526,912/698,761,816.20
  6. Step 6: Final answer
    x = 321,036,957.90

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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.