Finding the Fourth Proportional to 86,634,934.80, 129,952,402.20 and 35,553,613.20
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Solution
The fourth proportional to 86,634,934.80, 129,952,402.20 and 35,553,613.20 is: 53,330,419.80
Step by Step Solution
- Step 1: Write the proportion equation
86,634,934.80 : 129,952,402.20 = 35,553,613.20 : x - Step 2: Convert to fraction form
86,634,934.80/129,952,402.20 = 35,553,613.20/x - Step 3: Cross multiply
86,634,934.80x = 129,952,402.20 × 35,553,613.20 - Step 4: Simplify right side
86,634,934.80x = 4,620,277,442,229,630 - Step 5: Solve for x
x = 4,620,277,442,229,630/86,634,934.80 - Step 6: Final answer
x = 53,330,419.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.