Home / 672,605,136.90-1,008,907,705.35-412,978,493.70

Finding the Fourth Proportional to 672,605,136.90, 1,008,907,705.35 and 412,978,493.70

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Solution

The fourth proportional to 672,605,136.90, 1,008,907,705.35 and 412,978,493.70 is: 619,467,740.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,605,136.90 : 1,008,907,705.35 = 412,978,493.70 : x
  2. Step 2: Convert to fraction form
    672,605,136.90/1,008,907,705.35 = 412,978,493.70/x
  3. Step 3: Cross multiply
    672,605,136.90x = 1,008,907,705.35 × 412,978,493.70
  4. Step 4: Simplify right side
    672,605,136.90x = 416,657,184,437,766,400
  5. Step 5: Solve for x
    x = 416,657,184,437,766,400/672,605,136.90
  6. Step 6: Final answer
    x = 619,467,740.55

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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.