Finding the Fourth Proportional to 251,921,465.40, 377,882,198.10 and 106,519,207.80
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Solution
The fourth proportional to 251,921,465.40, 377,882,198.10 and 106,519,207.80 is: 159,778,811.70
Step by Step Solution
- Step 1: Write the proportion equation
251,921,465.40 : 377,882,198.10 = 106,519,207.80 : x - Step 2: Convert to fraction form
251,921,465.40/377,882,198.10 = 106,519,207.80/x - Step 3: Cross multiply
251,921,465.40x = 377,882,198.10 × 106,519,207.80 - Step 4: Simplify right side
251,921,465.40x = 40,251,712,383,334,664 - Step 5: Solve for x
x = 40,251,712,383,334,664/251,921,465.40 - Step 6: Final answer
x = 159,778,811.70
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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.