Finding the Fourth Proportional to 13,102,448.62, 18,081,451.05 and 7,599,086.92
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Solution
The fourth proportional to 13,102,448.62, 18,081,451.05 and 7,599,086.92 is: 10,486,781.68
Step by Step Solution
- Step 1: Write the proportion equation
13,102,448.62 : 18,081,451.05 = 7,599,086.92 : x - Step 2: Convert to fraction form
13,102,448.62/18,081,451.05 = 7,599,086.92/x - Step 3: Cross multiply
13,102,448.62x = 18,081,451.05 × 7,599,086.92 - Step 4: Simplify right side
13,102,448.62x = 137,402,518,168,675.27 - Step 5: Solve for x
x = 137,402,518,168,675.27/13,102,448.62 - Step 6: Final answer
x = 10,486,781.68
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1.5x scale
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.