Finding the Fourth Proportional to 77,112,505.26, 115,669,028.25 and 19,604,782.62
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Solution
The fourth proportional to 77,112,505.26, 115,669,028.25 and 19,604,782.62 is: 29,407,242.67
Step by Step Solution
- Step 1: Write the proportion equation
77,112,505.26 : 115,669,028.25 = 19,604,782.62 : x - Step 2: Convert to fraction form
77,112,505.26/115,669,028.25 = 19,604,782.62/x - Step 3: Cross multiply
77,112,505.26x = 115,669,028.25 × 19,604,782.62 - Step 4: Simplify right side
77,112,505.26x = 2,267,666,154,707,889 - Step 5: Solve for x
x = 2,267,666,154,707,889/77,112,505.26 - Step 6: Final answer
x = 29,407,242.67
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.