Home / 648,463,703.39-972,755,351.04-211,766,676.20

Finding the Fourth Proportional to 648,463,703.39, 972,755,351.04 and 211,766,676.20

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Solution

The fourth proportional to 648,463,703.39, 972,755,351.04 and 211,766,676.20 is: 317,669,541.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,463,703.39 : 972,755,351.04 = 211,766,676.20 : x
  2. Step 2: Convert to fraction form
    648,463,703.39/972,755,351.04 = 211,766,676.20/x
  3. Step 3: Cross multiply
    648,463,703.39x = 972,755,351.04 × 211,766,676.20
  4. Step 4: Simplify right side
    648,463,703.39x = 205,997,167,445,504,992
  5. Step 5: Solve for x
    x = 205,997,167,445,504,992/648,463,703.39
  6. Step 6: Final answer
    x = 317,669,541.67

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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.