Home / 648,463,702.39-972,755,349.54-211,766,675.20

Finding the Fourth Proportional to 648,463,702.39, 972,755,349.54 and 211,766,675.20

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Solution

The fourth proportional to 648,463,702.39, 972,755,349.54 and 211,766,675.20 is: 317,669,540.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,463,702.39 : 972,755,349.54 = 211,766,675.20 : x
  2. Step 2: Convert to fraction form
    648,463,702.39/972,755,349.54 = 211,766,675.20/x
  3. Step 3: Cross multiply
    648,463,702.39x = 972,755,349.54 × 211,766,675.20
  4. Step 4: Simplify right side
    648,463,702.39x = 205,997,166,155,099,616
  5. Step 5: Solve for x
    x = 205,997,166,155,099,616/648,463,702.39
  6. Step 6: Final answer
    x = 317,669,540.17

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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.