Finding the Fourth Proportional to 21,440,683.92, 32,158,366.21 and 12,692,168.17
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Solution
The fourth proportional to 21,440,683.92, 32,158,366.21 and 12,692,168.17 is: 19,036,677.82
Step by Step Solution
- Step 1: Write the proportion equation
21,440,683.92 : 32,158,366.21 = 12,692,168.17 : x - Step 2: Convert to fraction form
21,440,683.92/32,158,366.21 = 12,692,168.17/x - Step 3: Cross multiply
21,440,683.92x = 32,158,366.21 × 12,692,168.17 - Step 4: Simplify right side
21,440,683.92x = 408,159,392,009,765.56 - Step 5: Solve for x
x = 408,159,392,009,765.56/21,440,683.92 - Step 6: Final answer
x = 19,036,677.82
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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.