Finding the Fourth Proportional to 13,210,048.62, 18,212,995.80 and 8,555,612.04
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Solution
The fourth proportional to 13,210,048.62, 18,212,995.80 and 8,555,612.04 is: 11,795,817.76
Step by Step Solution
- Step 1: Write the proportion equation
13,210,048.62 : 18,212,995.80 = 8,555,612.04 : x - Step 2: Convert to fraction form
13,210,048.62/18,212,995.80 = 8,555,612.04/x - Step 3: Cross multiply
13,210,048.62x = 18,212,995.80 × 8,555,612.04 - Step 4: Simplify right side
13,210,048.62x = 155,823,326,150,949.44 - Step 5: Solve for x
x = 155,823,326,150,949.44/13,210,048.62 - Step 6: Final answer
x = 11,795,817.76
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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.