Finding the Fourth Proportional to 18,566,636.90, 27,840,799.11 and 7,634,829.92
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Solution
The fourth proportional to 18,566,636.90, 27,840,799.11 and 7,634,829.92 is: 11,448,479.72
Step by Step Solution
- Step 1: Write the proportion equation
18,566,636.90 : 27,840,799.11 = 7,634,829.92 : x - Step 2: Convert to fraction form
18,566,636.90/27,840,799.11 = 7,634,829.92/x - Step 3: Cross multiply
18,566,636.90x = 27,840,799.11 × 7,634,829.92 - Step 4: Simplify right side
18,566,636.90x = 212,559,766,041,737.38 - Step 5: Solve for x
x = 212,559,766,041,737.38/18,566,636.90 - Step 6: Final answer
x = 11,448,479.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.