Finding the Fourth Proportional to 11,118,156.01, 15,343,211.99 and 6,405,947.21
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Solution
The fourth proportional to 11,118,156.01, 15,343,211.99 and 6,405,947.21 is: 8,840,297.43
Step by Step Solution
- Step 1: Write the proportion equation
11,118,156.01 : 15,343,211.99 = 6,405,947.21 : x - Step 2: Convert to fraction form
11,118,156.01/15,343,211.99 = 6,405,947.21/x - Step 3: Cross multiply
11,118,156.01x = 15,343,211.99 × 6,405,947.21 - Step 4: Simplify right side
11,118,156.01x = 98,287,805,963,062.98 - Step 5: Solve for x
x = 98,287,805,963,062.98/11,118,156.01 - Step 6: Final answer
x = 8,840,297.43
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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.