Finding the Fourth Proportional to 386,203,167.55, 579,562,333.94 and 140,559,733.99
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Solution
The fourth proportional to 386,203,167.55, 579,562,333.94 and 140,559,733.99 is: 210,933,348.91
Step by Step Solution
- Step 1: Write the proportion equation
386,203,167.55 : 579,562,333.94 = 140,559,733.99 : x - Step 2: Convert to fraction form
386,203,167.55/579,562,333.94 = 140,559,733.99/x - Step 3: Cross multiply
386,203,167.55x = 579,562,333.94 × 140,559,733.99 - Step 4: Simplify right side
386,203,167.55x = 81,463,127,489,229,968 - Step 5: Solve for x
x = 81,463,127,489,229,968/386,203,167.55 - Step 6: Final answer
x = 210,933,348.91
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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.