Finding the Fourth Proportional to 7,880,427.48, 11,821,311.90 and 2,487,635.40
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Solution
The fourth proportional to 7,880,427.48, 11,821,311.90 and 2,487,635.40 is: 3,731,664.82
Step by Step Solution
- Step 1: Write the proportion equation
7,880,427.48 : 11,821,311.90 = 2,487,635.40 : x - Step 2: Convert to fraction form
7,880,427.48/11,821,311.90 = 2,487,635.40/x - Step 3: Cross multiply
7,880,427.48x = 11,821,311.90 × 2,487,635.40 - Step 4: Simplify right side
7,880,427.48x = 29,407,113,956,881.26 - Step 5: Solve for x
x = 29,407,113,956,881.26/7,880,427.48 - Step 6: Final answer
x = 3,731,664.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.