Finding the Fourth Proportional to 18,411,919.16, 27,616,877.68 and 5,632,423.86
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Solution
The fourth proportional to 18,411,919.16, 27,616,877.68 and 5,632,423.86 is: 8,448,329.55
Step by Step Solution
- Step 1: Write the proportion equation
18,411,919.16 : 27,616,877.68 = 5,632,423.86 : x - Step 2: Convert to fraction form
18,411,919.16/27,616,877.68 = 5,632,423.86/x - Step 3: Cross multiply
18,411,919.16x = 27,616,877.68 × 5,632,423.86 - Step 4: Simplify right side
18,411,919.16x = 155,549,960,769,452.38 - Step 5: Solve for x
x = 155,549,960,769,452.38/18,411,919.16 - Step 6: Final answer
x = 8,448,329.55
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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.