Finding the Fourth Proportional to 136,207,060.27, 187,969,713.92 and 74,331,384.55
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Solution
The fourth proportional to 136,207,060.27, 187,969,713.92 and 74,331,384.55 is: 102,579,477.61
Step by Step Solution
- Step 1: Write the proportion equation
136,207,060.27 : 187,969,713.92 = 74,331,384.55 : x - Step 2: Convert to fraction form
136,207,060.27/187,969,713.92 = 74,331,384.55/x - Step 3: Cross multiply
136,207,060.27x = 187,969,713.92 × 74,331,384.55 - Step 4: Simplify right side
136,207,060.27x = 13,972,049,089,141,006 - Step 5: Solve for x
x = 13,972,049,089,141,006/136,207,060.27 - Step 6: Final answer
x = 102,579,477.61
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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.