Finding the Fourth Proportional to 8,391,877.58, 11,579,979.30 and 4,722,064.24
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Solution
The fourth proportional to 8,391,877.58, 11,579,979.30 and 4,722,064.24 is: 6,515,991.88
Step by Step Solution
- Step 1: Write the proportion equation
8,391,877.58 : 11,579,979.30 = 4,722,064.24 : x - Step 2: Convert to fraction form
8,391,877.58/11,579,979.30 = 4,722,064.24/x - Step 3: Cross multiply
8,391,877.58x = 11,579,979.30 × 4,722,064.24 - Step 4: Simplify right side
8,391,877.58x = 54,681,406,152,470.23 - Step 5: Solve for x
x = 54,681,406,152,470.23/8,391,877.58 - Step 6: Final answer
x = 6,515,991.88
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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.