Finding the Fourth Proportional to 48,703,378.58, 67,178,292.45 and 31,321,711.70
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Solution
The fourth proportional to 48,703,378.58, 67,178,292.45 and 31,321,711.70 is: 43,203,144.63
Step by Step Solution
- Step 1: Write the proportion equation
48,703,378.58 : 67,178,292.45 = 31,321,711.70 : x - Step 2: Convert to fraction form
48,703,378.58/67,178,292.45 = 31,321,711.70/x - Step 3: Cross multiply
48,703,378.58x = 67,178,292.45 × 31,321,711.70 - Step 4: Simplify right side
48,703,378.58x = 2,104,139,108,617,186.75 - Step 5: Solve for x
x = 2,104,139,108,617,186.75/48,703,378.58 - Step 6: Final answer
x = 43,203,144.63
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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.