Finding the Fourth Proportional to 136,395,694.86, 204,722,889.12 and 84,423,084.95
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Solution
The fourth proportional to 136,395,694.86, 204,722,889.12 and 84,423,084.95 is: 126,714,687.56
Step by Step Solution
- Step 1: Write the proportion equation
136,395,694.86 : 204,722,889.12 = 84,423,084.95 : x - Step 2: Convert to fraction form
136,395,694.86/204,722,889.12 = 84,423,084.95/x - Step 3: Cross multiply
136,395,694.86x = 204,722,889.12 × 84,423,084.95 - Step 4: Simplify right side
136,395,694.86x = 17,283,337,858,363,576 - Step 5: Solve for x
x = 17,283,337,858,363,576/136,395,694.86 - Step 6: Final answer
x = 126,714,687.56
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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.