Finding the Fourth Proportional to 19,973,489.68, 27,582,452.04 and 18,885,348.61
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Solution
The fourth proportional to 19,973,489.68, 27,582,452.04 and 18,885,348.61 is: 26,079,780.28
Step by Step Solution
- Step 1: Write the proportion equation
19,973,489.68 : 27,582,452.04 = 18,885,348.61 : x - Step 2: Convert to fraction form
19,973,489.68/27,582,452.04 = 18,885,348.61/x - Step 3: Cross multiply
19,973,489.68x = 27,582,452.04 × 18,885,348.61 - Step 4: Simplify right side
19,973,489.68x = 520,904,222,294,005.62 - Step 5: Solve for x
x = 520,904,222,294,005.62/19,973,489.68 - Step 6: Final answer
x = 26,079,780.28
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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.