Finding the Fourth Proportional to 13,391,466.86, 18,479,042.24 and 7,431,023.14
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Solution
The fourth proportional to 13,391,466.86, 18,479,042.24 and 7,431,023.14 is: 10,254,156.02
Step by Step Solution
- Step 1: Write the proportion equation
13,391,466.86 : 18,479,042.24 = 7,431,023.14 : x - Step 2: Convert to fraction form
13,391,466.86/18,479,042.24 = 7,431,023.14/x - Step 3: Cross multiply
13,391,466.86x = 18,479,042.24 × 7,431,023.14 - Step 4: Simplify right side
13,391,466.86x = 137,318,190,490,477.42 - Step 5: Solve for x
x = 137,318,190,490,477.42/13,391,466.86 - Step 6: Final answer
x = 10,254,156.02
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1.5x scale
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.