Finding the Fourth Proportional to 19,683,121.80, 29,524,682.70 and 13,616,165.10
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Solution
The fourth proportional to 19,683,121.80, 29,524,682.70 and 13,616,165.10 is: 20,424,247.65
Step by Step Solution
- Step 1: Write the proportion equation
19,683,121.80 : 29,524,682.70 = 13,616,165.10 : x - Step 2: Convert to fraction form
19,683,121.80/29,524,682.70 = 13,616,165.10/x - Step 3: Cross multiply
19,683,121.80x = 29,524,682.70 × 13,616,165.10 - Step 4: Simplify right side
19,683,121.80x = 402,012,954,168,313.75 - Step 5: Solve for x
x = 402,012,954,168,313.75/19,683,121.80 - Step 6: Final answer
x = 20,424,247.65
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1.5x scale
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.