Finding the Fourth Proportional to 19,744,217.20, 29,616,325.80 and 16,384,985.20
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Solution
The fourth proportional to 19,744,217.20, 29,616,325.80 and 16,384,985.20 is: 24,577,477.80
Step by Step Solution
- Step 1: Write the proportion equation
19,744,217.20 : 29,616,325.80 = 16,384,985.20 : x - Step 2: Convert to fraction form
19,744,217.20/29,616,325.80 = 16,384,985.20/x - Step 3: Cross multiply
19,744,217.20x = 29,616,325.80 × 16,384,985.20 - Step 4: Simplify right side
19,744,217.20x = 485,263,059,911,378.12 - Step 5: Solve for x
x = 485,263,059,911,378.12/19,744,217.20 - Step 6: Final answer
x = 24,577,477.80
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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.