Finding the Fourth Proportional to 28,078,386.24, 38,744,611.12 and 16,471,714.80
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Solution
The fourth proportional to 28,078,386.24, 38,744,611.12 and 16,471,714.80 is: 22,728,876.90
Step by Step Solution
- Step 1: Write the proportion equation
28,078,386.24 : 38,744,611.12 = 16,471,714.80 : x - Step 2: Convert to fraction form
28,078,386.24/38,744,611.12 = 16,471,714.80/x - Step 3: Cross multiply
28,078,386.24x = 38,744,611.12 × 16,471,714.80 - Step 4: Simplify right side
28,078,386.24x = 638,190,184,405,548.50 - Step 5: Solve for x
x = 638,190,184,405,548.50/28,078,386.24 - Step 6: Final answer
x = 22,728,876.90
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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.