Home / 497,520,346.80-686,798,263.32-321,394,238.16

Finding the Fourth Proportional to 497,520,346.80, 686,798,263.32 and 321,394,238.16

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Solution

The fourth proportional to 497,520,346.80, 686,798,263.32 and 321,394,238.16 is: 443,666,286.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,520,346.80 : 686,798,263.32 = 321,394,238.16 : x
  2. Step 2: Convert to fraction form
    497,520,346.80/686,798,263.32 = 321,394,238.16/x
  3. Step 3: Cross multiply
    497,520,346.80x = 686,798,263.32 × 321,394,238.16
  4. Step 4: Simplify right side
    497,520,346.80x = 220,733,004,609,342,496
  5. Step 5: Solve for x
    x = 220,733,004,609,342,496/497,520,346.80
  6. Step 6: Final answer
    x = 443,666,286.27

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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.