Finding the Fourth Proportional to 5,555,991.80, 8,351,702.40 and 5,237,127.20
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Solution
The fourth proportional to 5,555,991.80, 8,351,702.40 and 5,237,127.20 is: 7,872,388.83
Step by Step Solution
- Step 1: Write the proportion equation
5,555,991.80 : 8,351,702.40 = 5,237,127.20 : x - Step 2: Convert to fraction form
5,555,991.80/8,351,702.40 = 5,237,127.20/x - Step 3: Cross multiply
5,555,991.80x = 8,351,702.40 × 5,237,127.20 - Step 4: Simplify right side
5,555,991.80x = 43,738,927,805,345.28 - Step 5: Solve for x
x = 43,738,927,805,345.28/5,555,991.80 - Step 6: Final answer
x = 7,872,388.83
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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.