Finding the Fourth Proportional to 10,547,469.12, 15,821,812.70 and 4,070,578.05
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Solution
The fourth proportional to 10,547,469.12, 15,821,812.70 and 4,070,578.05 is: 6,106,102.11
Step by Step Solution
- Step 1: Write the proportion equation
10,547,469.12 : 15,821,812.70 = 4,070,578.05 : x - Step 2: Convert to fraction form
10,547,469.12/15,821,812.70 = 4,070,578.05/x - Step 3: Cross multiply
10,547,469.12x = 15,821,812.70 × 4,070,578.05 - Step 4: Simplify right side
10,547,469.12x = 64,403,923,467,478.34 - Step 5: Solve for x
x = 64,403,923,467,478.34/10,547,469.12 - Step 6: Final answer
x = 6,106,102.11
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.