Home / 642,752,044,458.43-886,997,966,135.23-353,720,303,846.97

Finding the Fourth Proportional to 642,752,044,458.43, 886,997,966,135.23 and 353,720,303,846.97

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Solution

The fourth proportional to 642,752,044,458.43, 886,997,966,135.23 and 353,720,303,846.97 is: 488,134,098,985.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,752,044,458.43 : 886,997,966,135.23 = 353,720,303,846.97 : x
  2. Step 2: Convert to fraction form
    642,752,044,458.43/886,997,966,135.23 = 353,720,303,846.97/x
  3. Step 3: Cross multiply
    642,752,044,458.43x = 886,997,966,135.23 × 353,720,303,846.97
  4. Step 4: Simplify right side
    642,752,044,458.43x = 313,749,190,092,997,911,379,968
  5. Step 5: Solve for x
    x = 313,749,190,092,997,911,379,968/642,752,044,458.43
  6. Step 6: Final answer
    x = 488,134,098,985.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.