Finding the Fourth Proportional to 16,215,982.98, 22,378,058.79 and 8,873,817.84
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Solution
The fourth proportional to 16,215,982.98, 22,378,058.79 and 8,873,817.84 is: 12,245,869.87
Step by Step Solution
- Step 1: Write the proportion equation
16,215,982.98 : 22,378,058.79 = 8,873,817.84 : x - Step 2: Convert to fraction form
16,215,982.98/22,378,058.79 = 8,873,817.84/x - Step 3: Cross multiply
16,215,982.98x = 22,378,058.79 × 8,873,817.84 - Step 4: Simplify right side
16,215,982.98x = 198,578,817,315,270.81 - Step 5: Solve for x
x = 198,578,817,315,270.81/16,215,982.98 - Step 6: Final answer
x = 12,245,869.87
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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.