Home / 648,463,622.16-972,755,229.22-211,766,595.04

Finding the Fourth Proportional to 648,463,622.16, 972,755,229.22 and 211,766,595.04

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Solution

The fourth proportional to 648,463,622.16, 972,755,229.22 and 211,766,595.04 is: 317,669,419.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,463,622.16 : 972,755,229.22 = 211,766,595.04 : x
  2. Step 2: Convert to fraction form
    648,463,622.16/972,755,229.22 = 211,766,595.04/x
  3. Step 3: Cross multiply
    648,463,622.16x = 972,755,229.22 × 211,766,595.04
  4. Step 4: Simplify right side
    648,463,622.16x = 205,997,062,699,960,640
  5. Step 5: Solve for x
    x = 205,997,062,699,960,640/648,463,622.16
  6. Step 6: Final answer
    x = 317,669,419.93

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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.