Finding the Fourth Proportional to 7,481,661.18, 11,221,558.65 and 2,993,976.06
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Solution
The fourth proportional to 7,481,661.18, 11,221,558.65 and 2,993,976.06 is: 4,490,590.68
Step by Step Solution
- Step 1: Write the proportion equation
7,481,661.18 : 11,221,558.65 = 2,993,976.06 : x - Step 2: Convert to fraction form
7,481,661.18/11,221,558.65 = 2,993,976.06/x - Step 3: Cross multiply
7,481,661.18x = 11,221,558.65 × 2,993,976.06 - Step 4: Simplify right side
7,481,661.18x = 33,597,077,953,985.92 - Step 5: Solve for x
x = 33,597,077,953,985.92/7,481,661.18 - Step 6: Final answer
x = 4,490,590.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.