Finding the Fourth Proportional to 205,920,437.72, 284,175,753.42 and 121,153,473.68
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Solution
The fourth proportional to 205,920,437.72, 284,175,753.42 and 121,153,473.68 is: 167,195,058.65
Step by Step Solution
- Step 1: Write the proportion equation
205,920,437.72 : 284,175,753.42 = 121,153,473.68 : x - Step 2: Convert to fraction form
205,920,437.72/284,175,753.42 = 121,153,473.68/x - Step 3: Cross multiply
205,920,437.72x = 284,175,753.42 × 121,153,473.68 - Step 4: Simplify right side
205,920,437.72x = 34,428,879,662,464,144 - Step 5: Solve for x
x = 34,428,879,662,464,144/205,920,437.72 - Step 6: Final answer
x = 167,195,058.65
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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.