Finding the Fourth Proportional to 19,799,743.68, 27,272,536.38 and 13,988,437.56
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Solution
The fourth proportional to 19,799,743.68, 27,272,536.38 and 13,988,437.56 is: 19,267,934.90
Step by Step Solution
- Step 1: Write the proportion equation
19,799,743.68 : 27,272,536.38 = 13,988,437.56 : x - Step 2: Convert to fraction form
19,799,743.68/27,272,536.38 = 13,988,437.56/x - Step 3: Cross multiply
19,799,743.68x = 27,272,536.38 × 13,988,437.56 - Step 4: Simplify right side
19,799,743.68x = 381,500,172,254,458.44 - Step 5: Solve for x
x = 381,500,172,254,458.44/19,799,743.68 - Step 6: Final answer
x = 19,267,934.90
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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.