Finding the Fourth Proportional to 16,290,564.72, 22,479,668.28 and 9,415,492.08
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Solution
The fourth proportional to 16,290,564.72, 22,479,668.28 and 9,415,492.08 is: 12,992,621.33
Step by Step Solution
- Step 1: Write the proportion equation
16,290,564.72 : 22,479,668.28 = 9,415,492.08 : x - Step 2: Convert to fraction form
16,290,564.72/22,479,668.28 = 9,415,492.08/x - Step 3: Cross multiply
16,290,564.72x = 22,479,668.28 × 9,415,492.08 - Step 4: Simplify right side
16,290,564.72x = 211,657,138,651,367.25 - Step 5: Solve for x
x = 211,657,138,651,367.25/16,290,564.72 - Step 6: Final answer
x = 12,992,621.33
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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.