Finding the Fourth Proportional to 20,776,439.96, 28,671,631.30 and 11,609,469.08
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Solution
The fourth proportional to 20,776,439.96, 28,671,631.30 and 11,609,469.08 is: 16,021,147.88
Step by Step Solution
- Step 1: Write the proportion equation
20,776,439.96 : 28,671,631.30 = 11,609,469.08 : x - Step 2: Convert to fraction form
20,776,439.96/28,671,631.30 = 11,609,469.08/x - Step 3: Cross multiply
20,776,439.96x = 28,671,631.30 × 11,609,469.08 - Step 4: Simplify right side
20,776,439.96x = 332,862,417,050,510.19 - Step 5: Solve for x
x = 332,862,417,050,510.19/20,776,439.96 - Step 6: Final answer
x = 16,021,147.88
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.