Finding the Fourth Proportional to 299,386,447.80, 449,079,671.70 and 276,991,567.80
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Solution
The fourth proportional to 299,386,447.80, 449,079,671.70 and 276,991,567.80 is: 415,487,351.70
Step by Step Solution
- Step 1: Write the proportion equation
299,386,447.80 : 449,079,671.70 = 276,991,567.80 : x - Step 2: Convert to fraction form
299,386,447.80/449,079,671.70 = 276,991,567.80/x - Step 3: Cross multiply
299,386,447.80x = 449,079,671.70 × 276,991,567.80 - Step 4: Simplify right side
299,386,447.80x = 124,391,282,331,292,288 - Step 5: Solve for x
x = 124,391,282,331,292,288/299,386,447.80 - Step 6: Final answer
x = 415,487,351.70
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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.