Finding the Fourth Proportional to 15,462,538.62, 21,338,592.39 and 8,587,664.70
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Solution
The fourth proportional to 15,462,538.62, 21,338,592.39 and 8,587,664.70 is: 11,851,137.84
Step by Step Solution
- Step 1: Write the proportion equation
15,462,538.62 : 21,338,592.39 = 8,587,664.70 : x - Step 2: Convert to fraction form
15,462,538.62/21,338,592.39 = 8,587,664.70/x - Step 3: Cross multiply
15,462,538.62x = 21,338,592.39 × 8,587,664.70 - Step 4: Simplify right side
15,462,538.62x = 183,248,676,615,291.62 - Step 5: Solve for x
x = 183,248,676,615,291.62/15,462,538.62 - Step 6: Final answer
x = 11,851,137.84
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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.