Finding the Fourth Proportional to 13,386,470.69, 18,473,528.63 and 7,274,904.05
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Solution
The fourth proportional to 13,386,470.69, 18,473,528.63 and 7,274,904.05 is: 10,039,475.78
Step by Step Solution
- Step 1: Write the proportion equation
13,386,470.69 : 18,473,528.63 = 7,274,904.05 : x - Step 2: Convert to fraction form
13,386,470.69/18,473,528.63 = 7,274,904.05/x - Step 3: Cross multiply
13,386,470.69x = 18,473,528.63 × 7,274,904.05 - Step 4: Simplify right side
13,386,470.69x = 134,393,148,312,549.05 - Step 5: Solve for x
x = 134,393,148,312,549.05/13,386,470.69 - Step 6: Final answer
x = 10,039,475.78
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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.