Finding the Fourth Proportional to 145,235,328.60, 217,629,044.10 and 125,975,731.80
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Solution
The fourth proportional to 145,235,328.60, 217,629,044.10 and 125,975,731.80 is: 188,769,346.66
Step by Step Solution
- Step 1: Write the proportion equation
145,235,328.60 : 217,629,044.10 = 125,975,731.80 : x - Step 2: Convert to fraction form
145,235,328.60/217,629,044.10 = 125,975,731.80/x - Step 3: Cross multiply
145,235,328.60x = 217,629,044.10 × 125,975,731.80 - Step 4: Simplify right side
145,235,328.60x = 27,415,978,091,431,972 - Step 5: Solve for x
x = 27,415,978,091,431,972/145,235,328.60 - Step 6: Final answer
x = 188,769,346.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.