Finding the Fourth Proportional to 83,431,694.05, 115,135,985.79 and 46,264,592.70
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Solution
The fourth proportional to 83,431,694.05, 115,135,985.79 and 46,264,592.70 is: 63,845,275.45
Step by Step Solution
- Step 1: Write the proportion equation
83,431,694.05 : 115,135,985.79 = 46,264,592.70 : x - Step 2: Convert to fraction form
83,431,694.05/115,135,985.79 = 46,264,592.70/x - Step 3: Cross multiply
83,431,694.05x = 115,135,985.79 × 46,264,592.70 - Step 4: Simplify right side
83,431,694.05x = 5,326,719,487,687,338 - Step 5: Solve for x
x = 5,326,719,487,687,338/83,431,694.05 - Step 6: Final answer
x = 63,845,275.45
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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.