Finding the Fourth Proportional to 117,875,816.60, 161,490,653.07 and 113,457,741.26
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Solution
The fourth proportional to 117,875,816.60, 161,490,653.07 and 113,457,741.26 is: 155,437,860.45
Step by Step Solution
- Step 1: Write the proportion equation
117,875,816.60 : 161,490,653.07 = 113,457,741.26 : x - Step 2: Convert to fraction form
117,875,816.60/161,490,653.07 = 113,457,741.26/x - Step 3: Cross multiply
117,875,816.60x = 161,490,653.07 × 113,457,741.26 - Step 4: Simplify right side
117,875,816.60x = 18,322,364,730,691,564 - Step 5: Solve for x
x = 18,322,364,730,691,564/117,875,816.60 - Step 6: Final answer
x = 155,437,860.45
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.