Finding the Fourth Proportional to 27,707,138.90, 41,561,421.15 and 13,130,638.10
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Solution
The fourth proportional to 27,707,138.90, 41,561,421.15 and 13,130,638.10 is: 19,696,294.95
Step by Step Solution
- Step 1: Write the proportion equation
27,707,138.90 : 41,561,421.15 = 13,130,638.10 : x - Step 2: Convert to fraction form
27,707,138.90/41,561,421.15 = 13,130,638.10/x - Step 3: Cross multiply
27,707,138.90x = 41,561,421.15 × 13,130,638.10 - Step 4: Simplify right side
27,707,138.90x = 545,727,980,042,335.75 - Step 5: Solve for x
x = 545,727,980,042,335.75/27,707,138.90 - Step 6: Final answer
x = 19,696,294.95
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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.