Home / 648,463,623.67-972,755,231.47-211,766,596.55

Finding the Fourth Proportional to 648,463,623.67, 972,755,231.47 and 211,766,596.55

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Solution

The fourth proportional to 648,463,623.67, 972,755,231.47 and 211,766,596.55 is: 317,669,422.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,463,623.67 : 972,755,231.47 = 211,766,596.55 : x
  2. Step 2: Convert to fraction form
    648,463,623.67/972,755,231.47 = 211,766,596.55/x
  3. Step 3: Cross multiply
    648,463,623.67x = 972,755,231.47 × 211,766,596.55
  4. Step 4: Simplify right side
    648,463,623.67x = 205,997,064,639,216,128
  5. Step 5: Solve for x
    x = 205,997,064,639,216,128/648,463,623.67
  6. Step 6: Final answer
    x = 317,669,422.19

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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.