Home / 497,520,344.80-686,798,260.56-321,394,236.16

Finding the Fourth Proportional to 497,520,344.80, 686,798,260.56 and 321,394,236.16

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Solution

The fourth proportional to 497,520,344.80, 686,798,260.56 and 321,394,236.16 is: 443,666,283.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,520,344.80 : 686,798,260.56 = 321,394,236.16 : x
  2. Step 2: Convert to fraction form
    497,520,344.80/686,798,260.56 = 321,394,236.16/x
  3. Step 3: Cross multiply
    497,520,344.80x = 686,798,260.56 × 321,394,236.16
  4. Step 4: Simplify right side
    497,520,344.80x = 220,733,002,348,697,856
  5. Step 5: Solve for x
    x = 220,733,002,348,697,856/497,520,344.80
  6. Step 6: Final answer
    x = 443,666,283.51

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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.