Finding the Fourth Proportional to 21,688,269.12, 32,535,980.64 and 8,905,380.48
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Solution
The fourth proportional to 21,688,269.12, 32,535,980.64 and 8,905,380.48 is: 13,359,539.45
Step by Step Solution
- Step 1: Write the proportion equation
21,688,269.12 : 32,535,980.64 = 8,905,380.48 : x - Step 2: Convert to fraction form
21,688,269.12/32,535,980.64 = 8,905,380.48/x - Step 3: Cross multiply
21,688,269.12x = 32,535,980.64 × 8,905,380.48 - Step 4: Simplify right side
21,688,269.12x = 289,745,286,889,113.94 - Step 5: Solve for x
x = 289,745,286,889,113.94/21,688,269.12 - Step 6: Final answer
x = 13,359,539.45
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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.