Home / 497,520,272.80-686,798,161.20-321,394,164.16

Finding the Fourth Proportional to 497,520,272.80, 686,798,161.20 and 321,394,164.16

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Solution

The fourth proportional to 497,520,272.80, 686,798,161.20 and 321,394,164.16 is: 443,666,184.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,520,272.80 : 686,798,161.20 = 321,394,164.16 : x
  2. Step 2: Convert to fraction form
    497,520,272.80/686,798,161.20 = 321,394,164.16/x
  3. Step 3: Cross multiply
    497,520,272.80x = 686,798,161.20 × 321,394,164.16
  4. Step 4: Simplify right side
    497,520,272.80x = 220,732,920,965,498,976
  5. Step 5: Solve for x
    x = 220,732,920,965,498,976/497,520,272.80
  6. Step 6: Final answer
    x = 443,666,184.14

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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.