Finding the Fourth Proportional to 5,543,464.32, 7,649,980.80 and 3,129,171.84
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Solution
The fourth proportional to 5,543,464.32, 7,649,980.80 and 3,129,171.84 is: 4,318,257.16
Step by Step Solution
- Step 1: Write the proportion equation
5,543,464.32 : 7,649,980.80 = 3,129,171.84 : x - Step 2: Convert to fraction form
5,543,464.32/7,649,980.80 = 3,129,171.84/x - Step 3: Cross multiply
5,543,464.32x = 7,649,980.80 × 3,129,171.84 - Step 4: Simplify right side
5,543,464.32x = 23,938,104,495,900.67 - Step 5: Solve for x
x = 23,938,104,495,900.67/5,543,464.32 - Step 6: Final answer
x = 4,318,257.16
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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.