Home / 647,867,526.66-971,902,067.22-211,066,524.36

Finding the Fourth Proportional to 647,867,526.66, 971,902,067.22 and 211,066,524.36

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Solution

The fourth proportional to 647,867,526.66, 971,902,067.22 and 211,066,524.36 is: 316,632,618.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,867,526.66 : 971,902,067.22 = 211,066,524.36 : x
  2. Step 2: Convert to fraction form
    647,867,526.66/971,902,067.22 = 211,066,524.36/x
  3. Step 3: Cross multiply
    647,867,526.66x = 971,902,067.22 × 211,066,524.36
  4. Step 4: Simplify right side
    647,867,526.66x = 205,135,991,346,424,512
  5. Step 5: Solve for x
    x = 205,135,991,346,424,512/647,867,526.66
  6. Step 6: Final answer
    x = 316,632,618.41

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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.