Home / 40,186,771.70-55,458,033.63-21,851,925.98

Finding the Fourth Proportional to 40,186,771.70, 55,458,033.63 and 21,851,925.98

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Solution

The fourth proportional to 40,186,771.70, 55,458,033.63 and 21,851,925.98 is: 30,155,814.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,186,771.70 : 55,458,033.63 = 21,851,925.98 : x
  2. Step 2: Convert to fraction form
    40,186,771.70/55,458,033.63 = 21,851,925.98/x
  3. Step 3: Cross multiply
    40,186,771.70x = 55,458,033.63 × 21,851,925.98
  4. Step 4: Simplify right side
    40,186,771.70x = 1,211,864,845,879,110.75
  5. Step 5: Solve for x
    x = 1,211,864,845,879,110.75/40,186,771.70
  6. Step 6: Final answer
    x = 30,155,814.83

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.