Finding the Fourth Proportional to 20,630,292.63, 28,470,486.41 and 11,338,192.08
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Solution
The fourth proportional to 20,630,292.63, 28,470,486.41 and 11,338,192.08 is: 15,647,080.21
Step by Step Solution
- Step 1: Write the proportion equation
20,630,292.63 : 28,470,486.41 = 11,338,192.08 : x - Step 2: Convert to fraction form
20,630,292.63/28,470,486.41 = 11,338,192.08/x - Step 3: Cross multiply
20,630,292.63x = 28,470,486.41 × 11,338,192.08 - Step 4: Simplify right side
20,630,292.63x = 322,803,843,470,918.69 - Step 5: Solve for x
x = 322,803,843,470,918.69/20,630,292.63 - Step 6: Final answer
x = 15,647,080.21
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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.