Finding the Fourth Proportional to 418,662,103.24, 577,743,142.49 and 230,488,519.02
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Solution
The fourth proportional to 418,662,103.24, 577,743,142.49 and 230,488,519.02 is: 318,068,342.60
Step by Step Solution
- Step 1: Write the proportion equation
418,662,103.24 : 577,743,142.49 = 230,488,519.02 : x - Step 2: Convert to fraction form
418,662,103.24/577,743,142.49 = 230,488,519.02/x - Step 3: Cross multiply
418,662,103.24x = 577,743,142.49 × 230,488,519.02 - Step 4: Simplify right side
418,662,103.24x = 133,163,161,287,276,672 - Step 5: Solve for x
x = 133,163,161,287,276,672/418,662,103.24 - Step 6: Final answer
x = 318,068,342.60
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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.