Finding the Fourth Proportional to 15,039,328.24, 20,754,299.28 and 8,163,814.96
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Solution
The fourth proportional to 15,039,328.24, 20,754,299.28 and 8,163,814.96 is: 11,266,078.93
Step by Step Solution
- Step 1: Write the proportion equation
15,039,328.24 : 20,754,299.28 = 8,163,814.96 : x - Step 2: Convert to fraction form
15,039,328.24/20,754,299.28 = 8,163,814.96/x - Step 3: Cross multiply
15,039,328.24x = 20,754,299.28 × 8,163,814.96 - Step 4: Simplify right side
15,039,328.24x = 169,434,258,946,381.25 - Step 5: Solve for x
x = 169,434,258,946,381.25/15,039,328.24 - Step 6: Final answer
x = 11,266,078.93
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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.