Finding the Fourth Proportional to 368,412,316.26, 508,453,578.60 and 209,681,034.48
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Solution
The fourth proportional to 368,412,316.26, 508,453,578.60 and 209,681,034.48 is: 289,385,201.42
Step by Step Solution
- Step 1: Write the proportion equation
368,412,316.26 : 508,453,578.60 = 209,681,034.48 : x - Step 2: Convert to fraction form
368,412,316.26/508,453,578.60 = 209,681,034.48/x - Step 3: Cross multiply
368,412,316.26x = 508,453,578.60 × 209,681,034.48 - Step 4: Simplify right side
368,412,316.26x = 106,613,072,345,905,984 - Step 5: Solve for x
x = 106,613,072,345,905,984/368,412,316.26 - Step 6: Final answer
x = 289,385,201.42
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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.