Finding the Fourth Proportional to 106,996,891.20, 160,495,336.80 and 68,733,139.20
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Solution
The fourth proportional to 106,996,891.20, 160,495,336.80 and 68,733,139.20 is: 103,099,708.80
Step by Step Solution
- Step 1: Write the proportion equation
106,996,891.20 : 160,495,336.80 = 68,733,139.20 : x - Step 2: Convert to fraction form
106,996,891.20/160,495,336.80 = 68,733,139.20/x - Step 3: Cross multiply
106,996,891.20x = 160,495,336.80 × 68,733,139.20 - Step 4: Simplify right side
106,996,891.20x = 11,031,348,325,225,284 - Step 5: Solve for x
x = 11,031,348,325,225,284/106,996,891.20 - Step 6: Final answer
x = 103,099,708.80
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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.