Finding the Fourth Proportional to 117,197,527.05, 161,724,703.68 and 64,984,629.78
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Solution
The fourth proportional to 117,197,527.05, 161,724,703.68 and 64,984,629.78 is: 89,674,417.71
Step by Step Solution
- Step 1: Write the proportion equation
117,197,527.05 : 161,724,703.68 = 64,984,629.78 : x - Step 2: Convert to fraction form
117,197,527.05/161,724,703.68 = 64,984,629.78/x - Step 3: Cross multiply
117,197,527.05x = 161,724,703.68 × 64,984,629.78 - Step 4: Simplify right side
117,197,527.05x = 10,509,619,994,925,004 - Step 5: Solve for x
x = 10,509,619,994,925,004/117,197,527.05 - Step 6: Final answer
x = 89,674,417.71
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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.