Finding the Fourth Proportional to 108,615,611.59, 149,894,929.25 and 67,375,789.99
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Solution
The fourth proportional to 108,615,611.59, 149,894,929.25 and 67,375,789.99 is: 92,981,930.74
Step by Step Solution
- Step 1: Write the proportion equation
108,615,611.59 : 149,894,929.25 = 67,375,789.99 : x - Step 2: Convert to fraction form
108,615,611.59/149,894,929.25 = 67,375,789.99/x - Step 3: Cross multiply
108,615,611.59x = 149,894,929.25 × 67,375,789.99 - Step 4: Simplify right side
108,615,611.59x = 10,099,289,273,507,610 - Step 5: Solve for x
x = 10,099,289,273,507,610/108,615,611.59 - Step 6: Final answer
x = 92,981,930.74
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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.