Finding the Fourth Proportional to 20,284,235.61, 30,426,587.15 and 7,331,369.99
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Solution
The fourth proportional to 20,284,235.61, 30,426,587.15 and 7,331,369.99 is: 10,997,139.47
Step by Step Solution
- Step 1: Write the proportion equation
20,284,235.61 : 30,426,587.15 = 7,331,369.99 : x - Step 2: Convert to fraction form
20,284,235.61/30,426,587.15 = 7,331,369.99/x - Step 3: Cross multiply
20,284,235.61x = 30,426,587.15 × 7,331,369.99 - Step 4: Simplify right side
20,284,235.61x = 223,068,567,973,844.16 - Step 5: Solve for x
x = 223,068,567,973,844.16/20,284,235.61 - Step 6: Final answer
x = 10,997,139.47
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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.