Finding the Fourth Proportional to 153,693,441.27, 212,098,622.99 and 84,077,327.48
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Solution
The fourth proportional to 153,693,441.27, 212,098,622.99 and 84,077,327.48 is: 116,027,627.69
Step by Step Solution
- Step 1: Write the proportion equation
153,693,441.27 : 212,098,622.99 = 84,077,327.48 : x - Step 2: Convert to fraction form
153,693,441.27/212,098,622.99 = 84,077,327.48/x - Step 3: Cross multiply
153,693,441.27x = 212,098,622.99 × 84,077,327.48 - Step 4: Simplify right side
153,693,441.27x = 17,832,685,381,706,406 - Step 5: Solve for x
x = 17,832,685,381,706,406/153,693,441.27 - Step 6: Final answer
x = 116,027,627.69
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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.