Finding the Fourth Proportional to 151,746,319.12, 209,387,631.48 and 84,757,022.80
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Solution
The fourth proportional to 151,746,319.12, 209,387,631.48 and 84,757,022.80 is: 116,952,242.13
Step by Step Solution
- Step 1: Write the proportion equation
151,746,319.12 : 209,387,631.48 = 84,757,022.80 : x - Step 2: Convert to fraction form
151,746,319.12/209,387,631.48 = 84,757,022.80/x - Step 3: Cross multiply
151,746,319.12x = 209,387,631.48 × 84,757,022.80 - Step 4: Simplify right side
151,746,319.12x = 17,747,072,255,388,356 - Step 5: Solve for x
x = 17,747,072,255,388,356/151,746,319.12 - Step 6: Final answer
x = 116,952,242.13
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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.