Home / 642,752,044,452.66-886,997,966,127.29-353,720,303,841.22

Finding the Fourth Proportional to 642,752,044,452.66, 886,997,966,127.29 and 353,720,303,841.22

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Solution

The fourth proportional to 642,752,044,452.66, 886,997,966,127.29 and 353,720,303,841.22 is: 488,134,098,977.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,752,044,452.66 : 886,997,966,127.29 = 353,720,303,841.22 : x
  2. Step 2: Convert to fraction form
    642,752,044,452.66/886,997,966,127.29 = 353,720,303,841.22/x
  3. Step 3: Cross multiply
    642,752,044,452.66x = 886,997,966,127.29 × 353,720,303,841.22
  4. Step 4: Simplify right side
    642,752,044,452.66x = 313,749,190,085,089,198,866,432
  5. Step 5: Solve for x
    x = 313,749,190,085,089,198,866,432/642,752,044,452.66
  6. Step 6: Final answer
    x = 488,134,098,977.88

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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.