Finding the Fourth Proportional to 405,891,148.08, 560,122,014.96 and 229,675,936.44
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Solution
The fourth proportional to 405,891,148.08, 560,122,014.96 and 229,675,936.44 is: 316,948,395.93
Step by Step Solution
- Step 1: Write the proportion equation
405,891,148.08 : 560,122,014.96 = 229,675,936.44 : x - Step 2: Convert to fraction form
405,891,148.08/560,122,014.96 = 229,675,936.44/x - Step 3: Cross multiply
405,891,148.08x = 560,122,014.96 × 229,675,936.44 - Step 4: Simplify right side
405,891,148.08x = 128,646,548,306,597,696 - Step 5: Solve for x
x = 128,646,548,306,597,696/405,891,148.08 - Step 6: Final answer
x = 316,948,395.93
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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.