Finding the Fourth Proportional to 31,526,480.05, 43,506,561.12 and 17,587,835.21
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Solution
The fourth proportional to 31,526,480.05, 43,506,561.12 and 17,587,835.21 is: 24,271,222.99
Step by Step Solution
- Step 1: Write the proportion equation
31,526,480.05 : 43,506,561.12 = 17,587,835.21 : x - Step 2: Convert to fraction form
31,526,480.05/43,506,561.12 = 17,587,835.21/x - Step 3: Cross multiply
31,526,480.05x = 43,506,561.12 × 17,587,835.21 - Step 4: Simplify right side
31,526,480.05x = 765,186,227,532,353 - Step 5: Solve for x
x = 765,186,227,532,353/31,526,480.05 - Step 6: Final answer
x = 24,271,222.99
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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.