Finding the Fourth Proportional to 139,433,666.90, 192,414,596.99 and 75,851,897.99
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Solution
The fourth proportional to 139,433,666.90, 192,414,596.99 and 75,851,897.99 is: 104,673,517.57
Step by Step Solution
- Step 1: Write the proportion equation
139,433,666.90 : 192,414,596.99 = 75,851,897.99 : x - Step 2: Convert to fraction form
139,433,666.90/192,414,596.99 = 75,851,897.99/x - Step 3: Cross multiply
139,433,666.90x = 192,414,596.99 × 75,851,897.99 - Step 4: Simplify right side
139,433,666.90x = 14,595,012,381,331,110 - Step 5: Solve for x
x = 14,595,012,381,331,110/139,433,666.90 - Step 6: Final answer
x = 104,673,517.57
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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.