Finding the Fourth Proportional to 28,546,636.54, 39,393,304.68 and 15,493,615.18
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Solution
The fourth proportional to 28,546,636.54, 39,393,304.68 and 15,493,615.18 is: 21,380,617.03
Step by Step Solution
- Step 1: Write the proportion equation
28,546,636.54 : 39,393,304.68 = 15,493,615.18 : x - Step 2: Convert to fraction form
28,546,636.54/39,393,304.68 = 15,493,615.18/x - Step 3: Cross multiply
28,546,636.54x = 39,393,304.68 × 15,493,615.18 - Step 4: Simplify right side
28,546,636.54x = 610,344,703,380,413 - Step 5: Solve for x
x = 610,344,703,380,413/28,546,636.54 - Step 6: Final answer
x = 21,380,617.03
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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.