Finding the Fourth Proportional to 165,554,271.72, 228,471,943.14 and 92,215,446.12
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Solution
The fourth proportional to 165,554,271.72, 228,471,943.14 and 92,215,446.12 is: 127,261,241.55
Step by Step Solution
- Step 1: Write the proportion equation
165,554,271.72 : 228,471,943.14 = 92,215,446.12 : x - Step 2: Convert to fraction form
165,554,271.72/228,471,943.14 = 92,215,446.12/x - Step 3: Cross multiply
165,554,271.72x = 228,471,943.14 × 92,215,446.12 - Step 4: Simplify right side
165,554,271.72x = 21,068,642,162,558,372 - Step 5: Solve for x
x = 21,068,642,162,558,372/165,554,271.72 - Step 6: Final answer
x = 127,261,241.55
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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.