Finding the Fourth Proportional to 288,584,778.02, 398,236,324.43 and 156,422,937.00
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Solution
The fourth proportional to 288,584,778.02, 398,236,324.43 and 156,422,937.00 is: 215,857,869.96
Step by Step Solution
- Step 1: Write the proportion equation
288,584,778.02 : 398,236,324.43 = 156,422,937.00 : x - Step 2: Convert to fraction form
288,584,778.02/398,236,324.43 = 156,422,937.00/x - Step 3: Cross multiply
288,584,778.02x = 398,236,324.43 × 156,422,937.00 - Step 4: Simplify right side
288,584,778.02x = 62,293,295,485,043,216 - Step 5: Solve for x
x = 62,293,295,485,043,216/288,584,778.02 - Step 6: Final answer
x = 215,857,869.96
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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.