Finding the Fourth Proportional to 64,378,584.80, 96,567,877.20 and 38,806,431.20
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Solution
The fourth proportional to 64,378,584.80, 96,567,877.20 and 38,806,431.20 is: 58,209,646.80
Step by Step Solution
- Step 1: Write the proportion equation
64,378,584.80 : 96,567,877.20 = 38,806,431.20 : x - Step 2: Convert to fraction form
64,378,584.80/96,567,877.20 = 38,806,431.20/x - Step 3: Cross multiply
64,378,584.80x = 96,567,877.20 × 38,806,431.20 - Step 4: Simplify right side
64,378,584.80x = 3,747,454,682,691,849 - Step 5: Solve for x
x = 3,747,454,682,691,849/64,378,584.80 - Step 6: Final answer
x = 58,209,646.80
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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.