Finding the Fourth Proportional to 279,886,926.97, 386,383,791.80 and 174,074,449.70
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Solution
The fourth proportional to 279,886,926.97, 386,383,791.80 and 174,074,449.70 is: 240,309,708.85
Step by Step Solution
- Step 1: Write the proportion equation
279,886,926.97 : 386,383,791.80 = 174,074,449.70 : x - Step 2: Convert to fraction form
279,886,926.97/386,383,791.80 = 174,074,449.70/x - Step 3: Cross multiply
279,886,926.97x = 386,383,791.80 × 174,074,449.70 - Step 4: Simplify right side
279,886,926.97x = 67,259,545,929,715,408 - Step 5: Solve for x
x = 67,259,545,929,715,408/279,886,926.97 - Step 6: Final answer
x = 240,309,708.85
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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.