Finding the Fourth Proportional to 315,597,745.20, 473,060,694.60 and 121,434,135.60
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Solution
The fourth proportional to 315,597,745.20, 473,060,694.60 and 121,434,135.60 is: 182,021,948.54
Step by Step Solution
- Step 1: Write the proportion equation
315,597,745.20 : 473,060,694.60 = 121,434,135.60 : x - Step 2: Convert to fraction form
315,597,745.20/473,060,694.60 = 121,434,135.60/x - Step 3: Cross multiply
315,597,745.20x = 473,060,694.60 × 121,434,135.60 - Step 4: Simplify right side
315,597,745.20x = 57,445,716,535,086,584 - Step 5: Solve for x
x = 57,445,716,535,086,584/315,597,745.20 - Step 6: Final answer
x = 182,021,948.54
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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.