Finding the Fourth Proportional to 149,431,951.34, 206,221,220.70 and 86,703,312.50
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Solution
The fourth proportional to 149,431,951.34, 206,221,220.70 and 86,703,312.50 is: 119,653,546.53
Step by Step Solution
- Step 1: Write the proportion equation
149,431,951.34 : 206,221,220.70 = 86,703,312.50 : x - Step 2: Convert to fraction form
149,431,951.34/206,221,220.70 = 86,703,312.50/x - Step 3: Cross multiply
149,431,951.34x = 206,221,220.70 × 86,703,312.50 - Step 4: Simplify right side
149,431,951.34x = 17,880,062,942,483,568 - Step 5: Solve for x
x = 17,880,062,942,483,568/149,431,951.34 - Step 6: Final answer
x = 119,653,546.53
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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.