Finding the Fourth Proportional to 427,565,596.40, 641,348,394.60 and 366,343,593.20
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Solution
The fourth proportional to 427,565,596.40, 641,348,394.60 and 366,343,593.20 is: 549,515,389.80
Step by Step Solution
- Step 1: Write the proportion equation
427,565,596.40 : 641,348,394.60 = 366,343,593.20 : x - Step 2: Convert to fraction form
427,565,596.40/641,348,394.60 = 366,343,593.20/x - Step 3: Cross multiply
427,565,596.40x = 641,348,394.60 × 366,343,593.20 - Step 4: Simplify right side
427,565,596.40x = 234,953,875,370,815,488 - Step 5: Solve for x
x = 234,953,875,370,815,488/427,565,596.40 - Step 6: Final answer
x = 549,515,389.80
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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.