Home / 470,276,016.78-648,023,812.47-363,782,467.20

Finding the Fourth Proportional to 470,276,016.78, 648,023,812.47 and 363,782,467.20

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Solution

The fourth proportional to 470,276,016.78, 648,023,812.47 and 363,782,467.20 is: 501,279,446.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,276,016.78 : 648,023,812.47 = 363,782,467.20 : x
  2. Step 2: Convert to fraction form
    470,276,016.78/648,023,812.47 = 363,782,467.20/x
  3. Step 3: Cross multiply
    470,276,016.78x = 648,023,812.47 × 363,782,467.20
  4. Step 4: Simplify right side
    470,276,016.78x = 235,739,701,304,686,720
  5. Step 5: Solve for x
    x = 235,739,701,304,686,720/470,276,016.78
  6. Step 6: Final answer
    x = 501,279,446.31

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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.