Finding the Fourth Proportional to 77,264,912.10, 115,897,368.15 and 19,761,683.70
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Solution
The fourth proportional to 77,264,912.10, 115,897,368.15 and 19,761,683.70 is: 29,642,525.55
Step by Step Solution
- Step 1: Write the proportion equation
77,264,912.10 : 115,897,368.15 = 19,761,683.70 : x - Step 2: Convert to fraction form
77,264,912.10/115,897,368.15 = 19,761,683.70/x - Step 3: Cross multiply
77,264,912.10x = 115,897,368.15 × 19,761,683.70 - Step 4: Simplify right side
77,264,912.10x = 2,290,327,131,042,754 - Step 5: Solve for x
x = 2,290,327,131,042,754/77,264,912.10 - Step 6: Final answer
x = 29,642,525.55
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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.