Finding the Fourth Proportional to 106,996,881.20, 160,495,321.80 and 68,733,129.20
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Solution
The fourth proportional to 106,996,881.20, 160,495,321.80 and 68,733,129.20 is: 103,099,693.80
Step by Step Solution
- Step 1: Write the proportion equation
106,996,881.20 : 160,495,321.80 = 68,733,129.20 : x - Step 2: Convert to fraction form
106,996,881.20/160,495,321.80 = 68,733,129.20/x - Step 3: Cross multiply
106,996,881.20x = 160,495,321.80 × 68,733,129.20 - Step 4: Simplify right side
106,996,881.20x = 11,031,345,689,274,978 - Step 5: Solve for x
x = 11,031,345,689,274,978/106,996,881.20 - Step 6: Final answer
x = 103,099,693.80
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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.