Finding the Fourth Proportional to 20,678,637.36, 31,019,122.42 and 6,302,174.16
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Solution
The fourth proportional to 20,678,637.36, 31,019,122.42 and 6,302,174.16 is: 9,453,616.71
Step by Step Solution
- Step 1: Write the proportion equation
20,678,637.36 : 31,019,122.42 = 6,302,174.16 : x - Step 2: Convert to fraction form
20,678,637.36/31,019,122.42 = 6,302,174.16/x - Step 3: Cross multiply
20,678,637.36x = 31,019,122.42 × 6,302,174.16 - Step 4: Simplify right side
20,678,637.36x = 195,487,911,781,200.69 - Step 5: Solve for x
x = 195,487,911,781,200.69/20,678,637.36 - Step 6: Final answer
x = 9,453,616.71
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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.