Home / 648,463,630.16-972,755,241.21-211,766,603.04

Finding the Fourth Proportional to 648,463,630.16, 972,755,241.21 and 211,766,603.04

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Solution

The fourth proportional to 648,463,630.16, 972,755,241.21 and 211,766,603.04 is: 317,669,431.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,463,630.16 : 972,755,241.21 = 211,766,603.04 : x
  2. Step 2: Convert to fraction form
    648,463,630.16/972,755,241.21 = 211,766,603.04/x
  3. Step 3: Cross multiply
    648,463,630.16x = 972,755,241.21 × 211,766,603.04
  4. Step 4: Simplify right side
    648,463,630.16x = 205,997,073,020,397,504
  5. Step 5: Solve for x
    x = 205,997,073,020,397,504/648,463,630.16
  6. Step 6: Final answer
    x = 317,669,431.93

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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.