Finding the Fourth Proportional to 12,120,553.74, 18,183,717.42 and 4,547,585.10
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Solution
The fourth proportional to 12,120,553.74, 18,183,717.42 and 4,547,585.10 is: 6,822,460.77
Step by Step Solution
- Step 1: Write the proportion equation
12,120,553.74 : 18,183,717.42 = 4,547,585.10 : x - Step 2: Convert to fraction form
12,120,553.74/18,183,717.42 = 4,547,585.10/x - Step 3: Cross multiply
12,120,553.74x = 18,183,717.42 × 4,547,585.10 - Step 4: Simplify right side
12,120,553.74x = 82,692,002,401,802.44 - Step 5: Solve for x
x = 82,692,002,401,802.44/12,120,553.74 - Step 6: Final answer
x = 6,822,460.77
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1.5x scale
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.