Finding the Fourth Proportional to 161,259,725.49, 222,557,313.90 and 91,655,569.12
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Solution
The fourth proportional to 161,259,725.49, 222,557,313.90 and 91,655,569.12 is: 126,495,423.49
Step by Step Solution
- Step 1: Write the proportion equation
161,259,725.49 : 222,557,313.90 = 91,655,569.12 : x - Step 2: Convert to fraction form
161,259,725.49/222,557,313.90 = 91,655,569.12/x - Step 3: Cross multiply
161,259,725.49x = 222,557,313.90 × 91,655,569.12 - Step 4: Simplify right side
161,259,725.49x = 20,398,617,267,322,988 - Step 5: Solve for x
x = 20,398,617,267,322,988/161,259,725.49 - Step 6: Final answer
x = 126,495,423.49
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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.