Finding the Fourth Proportional to 21,630,808.96, 29,818,714.08 and 16,465,173.28
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Solution
The fourth proportional to 21,630,808.96, 29,818,714.08 and 16,465,173.28 is: 22,697,731.52
Step by Step Solution
- Step 1: Write the proportion equation
21,630,808.96 : 29,818,714.08 = 16,465,173.28 : x - Step 2: Convert to fraction form
21,630,808.96/29,818,714.08 = 16,465,173.28/x - Step 3: Cross multiply
21,630,808.96x = 29,818,714.08 × 16,465,173.28 - Step 4: Simplify right side
21,630,808.96x = 490,970,294,313,975.75 - Step 5: Solve for x
x = 490,970,294,313,975.75/21,630,808.96 - Step 6: Final answer
x = 22,697,731.52
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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.