Finding the Fourth Proportional to 30,348,877.80, 45,523,316.70 and 27,160,231.80
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Solution
The fourth proportional to 30,348,877.80, 45,523,316.70 and 27,160,231.80 is: 40,740,347.70
Step by Step Solution
- Step 1: Write the proportion equation
30,348,877.80 : 45,523,316.70 = 27,160,231.80 : x - Step 2: Convert to fraction form
30,348,877.80/45,523,316.70 = 27,160,231.80/x - Step 3: Cross multiply
30,348,877.80x = 45,523,316.70 × 27,160,231.80 - Step 4: Simplify right side
30,348,877.80x = 1,236,423,833,876,811.25 - Step 5: Solve for x
x = 1,236,423,833,876,811.25/30,348,877.80 - Step 6: Final answer
x = 40,740,347.70
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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.