Home / 76,128,379.20-105,054,336.64-41,320,320.48

Finding the Fourth Proportional to 76,128,379.20, 105,054,336.64 and 41,320,320.48

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Solution

The fourth proportional to 76,128,379.20, 105,054,336.64 and 41,320,320.48 is: 57,020,508.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,128,379.20 : 105,054,336.64 = 41,320,320.48 : x
  2. Step 2: Convert to fraction form
    76,128,379.20/105,054,336.64 = 41,320,320.48/x
  3. Step 3: Cross multiply
    76,128,379.20x = 105,054,336.64 × 41,320,320.48
  4. Step 4: Simplify right side
    76,128,379.20x = 4,340,878,857,778,606
  5. Step 5: Solve for x
    x = 4,340,878,857,778,606/76,128,379.20
  6. Step 6: Final answer
    x = 57,020,508.03

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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.