Home / 515,705,903.20-773,558,854.80-413,669,231.20

Finding the Fourth Proportional to 515,705,903.20, 773,558,854.80 and 413,669,231.20

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Solution

The fourth proportional to 515,705,903.20, 773,558,854.80 and 413,669,231.20 is: 620,503,846.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,705,903.20 : 773,558,854.80 = 413,669,231.20 : x
  2. Step 2: Convert to fraction form
    515,705,903.20/773,558,854.80 = 413,669,231.20/x
  3. Step 3: Cross multiply
    515,705,903.20x = 773,558,854.80 × 413,669,231.20
  4. Step 4: Simplify right side
    515,705,903.20x = 319,997,496,753,068,416
  5. Step 5: Solve for x
    x = 319,997,496,753,068,416/515,705,903.20
  6. Step 6: Final answer
    x = 620,503,846.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.