Home / 642,752,044,461.93-886,997,966,140.06-353,720,303,850.47

Finding the Fourth Proportional to 642,752,044,461.93, 886,997,966,140.06 and 353,720,303,850.47

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Solution

The fourth proportional to 642,752,044,461.93, 886,997,966,140.06 and 353,720,303,850.47 is: 488,134,098,990.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,752,044,461.93 : 886,997,966,140.06 = 353,720,303,850.47 : x
  2. Step 2: Convert to fraction form
    642,752,044,461.93/886,997,966,140.06 = 353,720,303,850.47/x
  3. Step 3: Cross multiply
    642,752,044,461.93x = 886,997,966,140.06 × 353,720,303,850.47
  4. Step 4: Simplify right side
    642,752,044,461.93x = 313,749,190,097,810,891,997,184
  5. Step 5: Solve for x
    x = 313,749,190,097,810,891,997,184/642,752,044,461.93
  6. Step 6: Final answer
    x = 488,134,098,990.63

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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.