Finding the Fourth Proportional to 13,128,673.44, 19,701,806.80 and 4,609,035.12
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Solution
The fourth proportional to 13,128,673.44, 19,701,806.80 and 4,609,035.12 is: 6,916,640.88
Step by Step Solution
- Step 1: Write the proportion equation
13,128,673.44 : 19,701,806.80 = 4,609,035.12 : x - Step 2: Convert to fraction form
13,128,673.44/19,701,806.80 = 4,609,035.12/x - Step 3: Cross multiply
13,128,673.44x = 19,701,806.80 × 4,609,035.12 - Step 4: Simplify right side
13,128,673.44x = 90,806,319,468,654.83 - Step 5: Solve for x
x = 90,806,319,468,654.83/13,128,673.44 - Step 6: Final answer
x = 6,916,640.88
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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.