Finding the Fourth Proportional to 540,461,067.76, 745,837,372.52 and 292,942,589.68
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Solution
The fourth proportional to 540,461,067.76, 745,837,372.52 and 292,942,589.68 is: 404,261,369.45
Step by Step Solution
- Step 1: Write the proportion equation
540,461,067.76 : 745,837,372.52 = 292,942,589.68 : x - Step 2: Convert to fraction form
540,461,067.76/745,837,372.52 = 292,942,589.68/x - Step 3: Cross multiply
540,461,067.76x = 745,837,372.52 × 292,942,589.68 - Step 4: Simplify right side
540,461,067.76x = 218,487,531,386,135,680 - Step 5: Solve for x
x = 218,487,531,386,135,680/540,461,067.76 - Step 6: Final answer
x = 404,261,369.45
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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.