Finding the Fourth Proportional to 117,915,474.12, 162,721,174.10 and 64,270,598.12
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Solution
The fourth proportional to 117,915,474.12, 162,721,174.10 and 64,270,598.12 is: 88,692,237.08
Step by Step Solution
- Step 1: Write the proportion equation
117,915,474.12 : 162,721,174.10 = 64,270,598.12 : x - Step 2: Convert to fraction form
117,915,474.12/162,721,174.10 = 64,270,598.12/x - Step 3: Cross multiply
117,915,474.12x = 162,721,174.10 × 64,270,598.12 - Step 4: Simplify right side
117,915,474.12x = 10,458,187,186,195,652 - Step 5: Solve for x
x = 10,458,187,186,195,652/117,915,474.12 - Step 6: Final answer
x = 88,692,237.08
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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.