Finding the Fourth Proportional to 16,142,661.44, 22,277,207.05 and 9,078,389.69
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Solution
The fourth proportional to 16,142,661.44, 22,277,207.05 and 9,078,389.69 is: 12,528,365.75
Step by Step Solution
- Step 1: Write the proportion equation
16,142,661.44 : 22,277,207.05 = 9,078,389.69 : x - Step 2: Convert to fraction form
16,142,661.44/22,277,207.05 = 9,078,389.69/x - Step 3: Cross multiply
16,142,661.44x = 22,277,207.05 × 9,078,389.69 - Step 4: Simplify right side
16,142,661.44x = 202,241,166,670,633.31 - Step 5: Solve for x
x = 202,241,166,670,633.31/16,142,661.44 - Step 6: Final answer
x = 12,528,365.75
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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.