Finding the Fourth Proportional to 10,370,420.63, 14,311,181.60 and 5,724,206.96
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Solution
The fourth proportional to 10,370,420.63, 14,311,181.60 and 5,724,206.96 is: 7,899,406.23
Step by Step Solution
- Step 1: Write the proportion equation
10,370,420.63 : 14,311,181.60 = 5,724,206.96 : x - Step 2: Convert to fraction form
10,370,420.63/14,311,181.60 = 5,724,206.96/x - Step 3: Cross multiply
10,370,420.63x = 14,311,181.60 × 5,724,206.96 - Step 4: Simplify right side
10,370,420.63x = 81,920,165,320,543.94 - Step 5: Solve for x
x = 81,920,165,320,543.94/10,370,420.63 - Step 6: Final answer
x = 7,899,406.23
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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.