Finding the Fourth Proportional to 18,777,823.30, 28,130,187.75 and 13,844,869.84
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Solution
The fourth proportional to 18,777,823.30, 28,130,187.75 and 13,844,869.84 is: 20,740,358.55
Step by Step Solution
- Step 1: Write the proportion equation
18,777,823.30 : 28,130,187.75 = 13,844,869.84 : x - Step 2: Convert to fraction form
18,777,823.30/28,130,187.75 = 13,844,869.84/x - Step 3: Cross multiply
18,777,823.30x = 28,130,187.75 × 13,844,869.84 - Step 4: Simplify right side
18,777,823.30x = 389,458,787,973,512.44 - Step 5: Solve for x
x = 389,458,787,973,512.44/18,777,823.30 - Step 6: Final answer
x = 20,740,358.55
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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.