Finding the Fourth Proportional to 165,621,963.44, 228,548,982.68 and 91,282,298.80
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Solution
The fourth proportional to 165,621,963.44, 228,548,982.68 and 91,282,298.80 is: 125,964,431.86
Step by Step Solution
- Step 1: Write the proportion equation
165,621,963.44 : 228,548,982.68 = 91,282,298.80 : x - Step 2: Convert to fraction form
165,621,963.44/228,548,982.68 = 91,282,298.80/x - Step 3: Cross multiply
165,621,963.44x = 228,548,982.68 × 91,282,298.80 - Step 4: Simplify right side
165,621,963.44x = 20,862,476,527,431,784 - Step 5: Solve for x
x = 20,862,476,527,431,784/165,621,963.44 - Step 6: Final answer
x = 125,964,431.86
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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.