Home / 470,008,940.72-648,599,438.94-261,159,713.60

Finding the Fourth Proportional to 470,008,940.72, 648,599,438.94 and 261,159,713.60

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Solution

The fourth proportional to 470,008,940.72, 648,599,438.94 and 261,159,713.60 is: 360,393,237.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,008,940.72 : 648,599,438.94 = 261,159,713.60 : x
  2. Step 2: Convert to fraction form
    470,008,940.72/648,599,438.94 = 261,159,713.60/x
  3. Step 3: Cross multiply
    470,008,940.72x = 648,599,438.94 × 261,159,713.60
  4. Step 4: Simplify right side
    470,008,940.72x = 169,388,043,714,691,104
  5. Step 5: Solve for x
    x = 169,388,043,714,691,104/470,008,940.72
  6. Step 6: Final answer
    x = 360,393,237.32

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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.