Finding the Fourth Proportional to 492,276,824.73, 679,551,193.31 and 306,729,513.99
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Solution
The fourth proportional to 492,276,824.73, 679,551,193.31 and 306,729,513.99 is: 423,417,062.89
Step by Step Solution
- Step 1: Write the proportion equation
492,276,824.73 : 679,551,193.31 = 306,729,513.99 : x - Step 2: Convert to fraction form
492,276,824.73/679,551,193.31 = 306,729,513.99/x - Step 3: Cross multiply
492,276,824.73x = 679,551,193.31 × 306,729,513.99 - Step 4: Simplify right side
492,276,824.73x = 208,438,407,253,767,168 - Step 5: Solve for x
x = 208,438,407,253,767,168/492,276,824.73 - Step 6: Final answer
x = 423,417,062.89
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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.