Finding the Fourth Proportional to 13,821,707.30, 20,748,307.35 and 8,145,130.10
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Solution
The fourth proportional to 13,821,707.30, 20,748,307.35 and 8,145,130.10 is: 12,226,974.50
Step by Step Solution
- Step 1: Write the proportion equation
13,821,707.30 : 20,748,307.35 = 8,145,130.10 : x - Step 2: Convert to fraction form
13,821,707.30/20,748,307.35 = 8,145,130.10/x - Step 3: Cross multiply
13,821,707.30x = 20,748,307.35 × 8,145,130.10 - Step 4: Simplify right side
13,821,707.30x = 168,997,662,720,536.25 - Step 5: Solve for x
x = 168,997,662,720,536.25/13,821,707.30 - Step 6: Final answer
x = 12,226,974.50
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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.