Finding the Fourth Proportional to 209,724,207.42, 289,543,415.40 and 186,454,952.13
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Solution
The fourth proportional to 209,724,207.42, 289,543,415.40 and 186,454,952.13 is: 257,418,084.07
Step by Step Solution
- Step 1: Write the proportion equation
209,724,207.42 : 289,543,415.40 = 186,454,952.13 : x - Step 2: Convert to fraction form
209,724,207.42/289,543,415.40 = 186,454,952.13/x - Step 3: Cross multiply
209,724,207.42x = 289,543,415.40 × 186,454,952.13 - Step 4: Simplify right side
209,724,207.42x = 53,986,803,657,963,696 - Step 5: Solve for x
x = 53,986,803,657,963,696/209,724,207.42 - Step 6: Final answer
x = 257,418,084.07
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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.