Home / 672,605,206.90-1,008,907,810.35-412,978,563.70

Finding the Fourth Proportional to 672,605,206.90, 1,008,907,810.35 and 412,978,563.70

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Solution

The fourth proportional to 672,605,206.90, 1,008,907,810.35 and 412,978,563.70 is: 619,467,845.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,605,206.90 : 1,008,907,810.35 = 412,978,563.70 : x
  2. Step 2: Convert to fraction form
    672,605,206.90/1,008,907,810.35 = 412,978,563.70/x
  3. Step 3: Cross multiply
    672,605,206.90x = 1,008,907,810.35 × 412,978,563.70
  4. Step 4: Simplify right side
    672,605,206.90x = 416,657,298,424,054,976
  5. Step 5: Solve for x
    x = 416,657,298,424,054,976/672,605,206.90
  6. Step 6: Final answer
    x = 619,467,845.55

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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.