Finding the Fourth Proportional to 117,120,971.99, 161,626,956.68 and 64,913,378.27
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Solution
The fourth proportional to 117,120,971.99, 161,626,956.68 and 64,913,378.27 is: 89,580,470.51
Step by Step Solution
- Step 1: Write the proportion equation
117,120,971.99 : 161,626,956.68 = 64,913,378.27 : x - Step 2: Convert to fraction form
117,120,971.99/161,626,956.68 = 64,913,378.27/x - Step 3: Cross multiply
117,120,971.99x = 161,626,956.68 × 64,913,378.27 - Step 4: Simplify right side
117,120,971.99x = 10,491,751,777,273,178 - Step 5: Solve for x
x = 10,491,751,777,273,178/117,120,971.99 - Step 6: Final answer
x = 89,580,470.51
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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.