Finding the Fourth Proportional to 7,223,815.16, 9,968,812.23 and 3,960,576.07
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Solution
The fourth proportional to 7,223,815.16, 9,968,812.23 and 3,960,576.07 is: 5,465,566.09
Step by Step Solution
- Step 1: Write the proportion equation
7,223,815.16 : 9,968,812.23 = 3,960,576.07 : x - Step 2: Convert to fraction form
7,223,815.16/9,968,812.23 = 3,960,576.07/x - Step 3: Cross multiply
7,223,815.16x = 9,968,812.23 × 3,960,576.07 - Step 4: Simplify right side
7,223,815.16x = 39,482,239,164,461.34 - Step 5: Solve for x
x = 39,482,239,164,461.34/7,223,815.16 - Step 6: Final answer
x = 5,465,566.09
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.