Home / 72,965,219.16-100,694,261.19-39,926,860.80

Finding the Fourth Proportional to 72,965,219.16, 100,694,261.19 and 39,926,860.80

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Solution

The fourth proportional to 72,965,219.16, 100,694,261.19 and 39,926,860.80 is: 55,100,303.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,965,219.16 : 100,694,261.19 = 39,926,860.80 : x
  2. Step 2: Convert to fraction form
    72,965,219.16/100,694,261.19 = 39,926,860.80/x
  3. Step 3: Cross multiply
    72,965,219.16x = 100,694,261.19 × 39,926,860.80
  4. Step 4: Simplify right side
    72,965,219.16x = 4,020,405,749,891,972
  5. Step 5: Solve for x
    x = 4,020,405,749,891,972/72,965,219.16
  6. Step 6: Final answer
    x = 55,100,303.90

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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.