Finding the Fourth Proportional to 208,631,316.49, 287,911,783.31 and 114,551,557.09
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Solution
The fourth proportional to 208,631,316.49, 287,911,783.31 and 114,551,557.09 is: 158,081,459.86
Step by Step Solution
- Step 1: Write the proportion equation
208,631,316.49 : 287,911,783.31 = 114,551,557.09 : x - Step 2: Convert to fraction form
208,631,316.49/287,911,783.31 = 114,551,557.09/x - Step 3: Cross multiply
208,631,316.49x = 287,911,783.31 × 114,551,557.09 - Step 4: Simplify right side
208,631,316.49x = 32,980,743,083,692,512 - Step 5: Solve for x
x = 32,980,743,083,692,512/208,631,316.49 - Step 6: Final answer
x = 158,081,459.86
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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.