Finding the Fourth Proportional to 166,386,975.63, 229,607,128.35 and 91,032,933.81
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Solution
The fourth proportional to 166,386,975.63, 229,607,128.35 and 91,032,933.81 is: 125,621,674.64
Step by Step Solution
- Step 1: Write the proportion equation
166,386,975.63 : 229,607,128.35 = 91,032,933.81 : x - Step 2: Convert to fraction form
166,386,975.63/229,607,128.35 = 91,032,933.81/x - Step 3: Cross multiply
166,386,975.63x = 229,607,128.35 × 91,032,933.81 - Step 4: Simplify right side
166,386,975.63x = 20,901,810,517,389,724 - Step 5: Solve for x
x = 20,901,810,517,389,724/166,386,975.63 - Step 6: Final answer
x = 125,621,674.64
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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.