Finding the Fourth Proportional to 129,029,471.20, 193,544,206.80 and 57,365,855.20
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Solution
The fourth proportional to 129,029,471.20, 193,544,206.80 and 57,365,855.20 is: 86,048,782.80
Step by Step Solution
- Step 1: Write the proportion equation
129,029,471.20 : 193,544,206.80 = 57,365,855.20 : x - Step 2: Convert to fraction form
129,029,471.20/193,544,206.80 = 57,365,855.20/x - Step 3: Cross multiply
129,029,471.20x = 193,544,206.80 × 57,365,855.20 - Step 4: Simplify right side
129,029,471.20x = 11,102,828,942,087,656 - Step 5: Solve for x
x = 11,102,828,942,087,656/129,029,471.20 - Step 6: Final answer
x = 86,048,782.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.