Finding the Fourth Proportional to 10,869,534.36, 16,306,971.06 and 5,407,206.63
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Solution
The fourth proportional to 10,869,534.36, 16,306,971.06 and 5,407,206.63 is: 8,112,137.94
Step by Step Solution
- Step 1: Write the proportion equation
10,869,534.36 : 16,306,971.06 = 5,407,206.63 : x - Step 2: Convert to fraction form
10,869,534.36/16,306,971.06 = 5,407,206.63/x - Step 3: Cross multiply
10,869,534.36x = 16,306,971.06 × 5,407,206.63 - Step 4: Simplify right side
10,869,534.36x = 88,175,162,030,850.12 - Step 5: Solve for x
x = 88,175,162,030,850.12/10,869,534.36 - Step 6: Final answer
x = 8,112,137.94
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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.