Finding the Fourth Proportional to 154,957,876.98, 213,851,541.60 and 85,343,239.42
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Solution
The fourth proportional to 154,957,876.98, 213,851,541.60 and 85,343,239.42 is: 117,778,996.92
Step by Step Solution
- Step 1: Write the proportion equation
154,957,876.98 : 213,851,541.60 = 85,343,239.42 : x - Step 2: Convert to fraction form
154,957,876.98/213,851,541.60 = 85,343,239.42/x - Step 3: Cross multiply
154,957,876.98x = 213,851,541.60 × 85,343,239.42 - Step 4: Simplify right side
154,957,876.98x = 18,250,783,315,104,888 - Step 5: Solve for x
x = 18,250,783,315,104,888/154,957,876.98 - Step 6: Final answer
x = 117,778,996.92
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.