Finding the Fourth Proportional to 129,402,407.80, 194,103,611.70 and 61,377,959.80
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Solution
The fourth proportional to 129,402,407.80, 194,103,611.70 and 61,377,959.80 is: 92,066,939.70
Step by Step Solution
- Step 1: Write the proportion equation
129,402,407.80 : 194,103,611.70 = 61,377,959.80 : x - Step 2: Convert to fraction form
129,402,407.80/194,103,611.70 = 61,377,959.80/x - Step 3: Cross multiply
129,402,407.80x = 194,103,611.70 × 61,377,959.80 - Step 4: Simplify right side
129,402,407.80x = 11,913,683,675,957,408 - Step 5: Solve for x
x = 11,913,683,675,957,408/129,402,407.80 - Step 6: Final answer
x = 92,066,939.70
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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.