Finding the Fourth Proportional to 21,000,366.36, 28,958,407.92 and 16,582,763.07
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Solution
The fourth proportional to 21,000,366.36, 28,958,407.92 and 16,582,763.07 is: 22,866,763.81
Step by Step Solution
- Step 1: Write the proportion equation
21,000,366.36 : 28,958,407.92 = 16,582,763.07 : x - Step 2: Convert to fraction form
21,000,366.36/28,958,407.92 = 16,582,763.07/x - Step 3: Cross multiply
21,000,366.36x = 28,958,407.92 × 16,582,763.07 - Step 4: Simplify right side
21,000,366.36x = 480,210,417,421,771.56 - Step 5: Solve for x
x = 480,210,417,421,771.56/21,000,366.36 - Step 6: Final answer
x = 22,866,763.81
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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.