Finding the Fourth Proportional to 81,413,940.42, 122,020,860.63 and 37,635,481.21
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Solution
The fourth proportional to 81,413,940.42, 122,020,860.63 and 37,635,481.21 is: 56,406,971.38
Step by Step Solution
- Step 1: Write the proportion equation
81,413,940.42 : 122,020,860.63 = 37,635,481.21 : x - Step 2: Convert to fraction form
81,413,940.42/122,020,860.63 = 37,635,481.21/x - Step 3: Cross multiply
81,413,940.42x = 122,020,860.63 × 37,635,481.21 - Step 4: Simplify right side
81,413,940.42x = 4,592,313,807,468,394 - Step 5: Solve for x
x = 4,592,313,807,468,394/81,413,940.42 - Step 6: Final answer
x = 56,406,971.38
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.