Finding the Fourth Proportional to 117,329,557.68, 161,912,353.56 and 65,115,560.88
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Solution
The fourth proportional to 117,329,557.68, 161,912,353.56 and 65,115,560.88 is: 89,858,122.06
Step by Step Solution
- Step 1: Write the proportion equation
117,329,557.68 : 161,912,353.56 = 65,115,560.88 : x - Step 2: Convert to fraction form
117,329,557.68/161,912,353.56 = 65,115,560.88/x - Step 3: Cross multiply
117,329,557.68x = 161,912,353.56 × 65,115,560.88 - Step 4: Simplify right side
117,329,557.68x = 10,543,013,715,460,266 - Step 5: Solve for x
x = 10,543,013,715,460,266/117,329,557.68 - Step 6: Final answer
x = 89,858,122.06
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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.