Home / 76,808,149.48-105,945,302.82-49,262,447.08

Finding the Fourth Proportional to 76,808,149.48, 105,945,302.82 and 49,262,447.08

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Solution

The fourth proportional to 76,808,149.48, 105,945,302.82 and 49,262,447.08 is: 67,950,144.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,808,149.48 : 105,945,302.82 = 49,262,447.08 : x
  2. Step 2: Convert to fraction form
    76,808,149.48/105,945,302.82 = 49,262,447.08/x
  3. Step 3: Cross multiply
    76,808,149.48x = 105,945,302.82 × 49,262,447.08
  4. Step 4: Simplify right side
    76,808,149.48x = 5,219,124,873,544,824
  5. Step 5: Solve for x
    x = 5,219,124,873,544,824/76,808,149.48
  6. Step 6: Final answer
    x = 67,950,144.73

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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.