Finding the Fourth Proportional to 13,487,217.08, 18,612,321.93 and 7,292,220.44
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Solution
The fourth proportional to 13,487,217.08, 18,612,321.93 and 7,292,220.44 is: 10,063,243.86
Step by Step Solution
- Step 1: Write the proportion equation
13,487,217.08 : 18,612,321.93 = 7,292,220.44 : x - Step 2: Convert to fraction form
13,487,217.08/18,612,321.93 = 7,292,220.44/x - Step 3: Cross multiply
13,487,217.08x = 18,612,321.93 × 7,292,220.44 - Step 4: Simplify right side
13,487,217.08x = 135,725,154,413,806.25 - Step 5: Solve for x
x = 135,725,154,413,806.25/13,487,217.08 - Step 6: Final answer
x = 10,063,243.86
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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.