Finding the Fourth Proportional to 107,785,417.20, 161,678,125.80 and 39,619,251.60
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Solution
The fourth proportional to 107,785,417.20, 161,678,125.80 and 39,619,251.60 is: 59,428,877.40
Step by Step Solution
- Step 1: Write the proportion equation
107,785,417.20 : 161,678,125.80 = 39,619,251.60 : x - Step 2: Convert to fraction form
107,785,417.20/161,678,125.80 = 39,619,251.60/x - Step 3: Cross multiply
107,785,417.20x = 161,678,125.80 × 39,619,251.60 - Step 4: Simplify right side
107,785,417.20x = 6,405,566,344,286,652 - Step 5: Solve for x
x = 6,405,566,344,286,652/107,785,417.20 - Step 6: Final answer
x = 59,428,877.40
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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.