Finding the Fourth Proportional to 131,651,438.19, 181,678,531.21 and 75,896,592.76
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Solution
The fourth proportional to 131,651,438.19, 181,678,531.21 and 75,896,592.76 is: 104,737,036.57
Step by Step Solution
- Step 1: Write the proportion equation
131,651,438.19 : 181,678,531.21 = 75,896,592.76 : x - Step 2: Convert to fraction form
131,651,438.19/181,678,531.21 = 75,896,592.76/x - Step 3: Cross multiply
131,651,438.19x = 181,678,531.21 × 75,896,592.76 - Step 4: Simplify right side
131,651,438.19x = 13,788,781,496,802,290 - Step 5: Solve for x
x = 13,788,781,496,802,290/131,651,438.19 - Step 6: Final answer
x = 104,737,036.57
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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.