Finding the Fourth Proportional to 109,255,514.70, 163,883,272.05 and 84,862,372.80
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Solution
The fourth proportional to 109,255,514.70, 163,883,272.05 and 84,862,372.80 is: 127,293,559.20
Step by Step Solution
- Step 1: Write the proportion equation
109,255,514.70 : 163,883,272.05 = 84,862,372.80 : x - Step 2: Convert to fraction form
109,255,514.70/163,883,272.05 = 84,862,372.80/x - Step 3: Cross multiply
109,255,514.70x = 163,883,272.05 × 84,862,372.80 - Step 4: Simplify right side
109,255,514.70x = 13,907,523,328,390,920 - Step 5: Solve for x
x = 13,907,523,328,390,920/109,255,514.70 - Step 6: Final answer
x = 127,293,559.20
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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.