Finding the Fourth Proportional to 7,187,623.62, 9,918,636.51 and 3,924,575.82
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Solution
The fourth proportional to 7,187,623.62, 9,918,636.51 and 3,924,575.82 is: 5,415,759.52
Step by Step Solution
- Step 1: Write the proportion equation
7,187,623.62 : 9,918,636.51 = 3,924,575.82 : x - Step 2: Convert to fraction form
7,187,623.62/9,918,636.51 = 3,924,575.82/x - Step 3: Cross multiply
7,187,623.62x = 9,918,636.51 × 3,924,575.82 - Step 4: Simplify right side
7,187,623.62x = 38,926,441,014,515.19 - Step 5: Solve for x
x = 38,926,441,014,515.19/7,187,623.62 - Step 6: Final answer
x = 5,415,759.52
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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.