Finding the Fourth Proportional to 8,479,116.64, 12,718,683.60 and 3,430,470.88
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Solution
The fourth proportional to 8,479,116.64, 12,718,683.60 and 3,430,470.88 is: 5,145,709.82
Step by Step Solution
- Step 1: Write the proportion equation
8,479,116.64 : 12,718,683.60 = 3,430,470.88 : x - Step 2: Convert to fraction form
8,479,116.64/12,718,683.60 = 3,430,470.88/x - Step 3: Cross multiply
8,479,116.64x = 12,718,683.60 × 3,430,470.88 - Step 4: Simplify right side
8,479,116.64x = 43,631,073,721,733.56 - Step 5: Solve for x
x = 43,631,073,721,733.56/8,479,116.64 - Step 6: Final answer
x = 5,145,709.82
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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.