Finding the Fourth Proportional to 83,133,043.20, 124,699,564.80 and 81,715,867.20
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Solution
The fourth proportional to 83,133,043.20, 124,699,564.80 and 81,715,867.20 is: 122,573,800.80
Step by Step Solution
- Step 1: Write the proportion equation
83,133,043.20 : 124,699,564.80 = 81,715,867.20 : x - Step 2: Convert to fraction form
83,133,043.20/124,699,564.80 = 81,715,867.20/x - Step 3: Cross multiply
83,133,043.20x = 124,699,564.80 × 81,715,867.20 - Step 4: Simplify right side
83,133,043.20x = 10,189,933,077,094,594 - Step 5: Solve for x
x = 10,189,933,077,094,594/83,133,043.20 - Step 6: Final answer
x = 122,573,800.80
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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.