Finding the Fourth Proportional to 10,255,767.28, 14,157,316.66 and 6,390,198.30
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Solution
The fourth proportional to 10,255,767.28, 14,157,316.66 and 6,390,198.30 is: 8,821,188.94
Step by Step Solution
- Step 1: Write the proportion equation
10,255,767.28 : 14,157,316.66 = 6,390,198.30 : x - Step 2: Convert to fraction form
10,255,767.28/14,157,316.66 = 6,390,198.30/x - Step 3: Cross multiply
10,255,767.28x = 14,157,316.66 × 6,390,198.30 - Step 4: Simplify right side
10,255,767.28x = 90,468,060,857,869.14 - Step 5: Solve for x
x = 90,468,060,857,869.14/10,255,767.28 - Step 6: Final answer
x = 8,821,188.94
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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.