Finding the Fourth Proportional to 13,202,480.70, 19,803,721.05 and 12,724,183.80
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Solution
The fourth proportional to 13,202,480.70, 19,803,721.05 and 12,724,183.80 is: 19,086,275.70
Step by Step Solution
- Step 1: Write the proportion equation
13,202,480.70 : 19,803,721.05 = 12,724,183.80 : x - Step 2: Convert to fraction form
13,202,480.70/19,803,721.05 = 12,724,183.80/x - Step 3: Cross multiply
13,202,480.70x = 19,803,721.05 × 12,724,183.80 - Step 4: Simplify right side
13,202,480.70x = 251,986,186,564,129 - Step 5: Solve for x
x = 251,986,186,564,129/13,202,480.70 - Step 6: Final answer
x = 19,086,275.70
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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.