Finding the Fourth Proportional to 19,683,372.50, 27,163,841.40 and 10,982,305.52
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Solution
The fourth proportional to 19,683,372.50, 27,163,841.40 and 10,982,305.52 is: 15,156,020.92
Step by Step Solution
- Step 1: Write the proportion equation
19,683,372.50 : 27,163,841.40 = 10,982,305.52 : x - Step 2: Convert to fraction form
19,683,372.50/27,163,841.40 = 10,982,305.52/x - Step 3: Cross multiply
19,683,372.50x = 27,163,841.40 × 10,982,305.52 - Step 4: Simplify right side
19,683,372.50x = 298,321,605,351,624.50 - Step 5: Solve for x
x = 298,321,605,351,624.50/19,683,372.50 - Step 6: Final answer
x = 15,156,020.92
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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.