Finding the Fourth Proportional to 7,128,047.80, 10,688,135.10 and 2,863,397.80
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Solution
The fourth proportional to 7,128,047.80, 10,688,135.10 and 2,863,397.80 is: 4,293,515.33
Step by Step Solution
- Step 1: Write the proportion equation
7,128,047.80 : 10,688,135.10 = 2,863,397.80 : x - Step 2: Convert to fraction form
7,128,047.80/10,688,135.10 = 2,863,397.80/x - Step 3: Cross multiply
7,128,047.80x = 10,688,135.10 × 2,863,397.80 - Step 4: Simplify right side
7,128,047.80x = 30,604,382,531,442.78 - Step 5: Solve for x
x = 30,604,382,531,442.78/7,128,047.80 - Step 6: Final answer
x = 4,293,515.33
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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.