Finding the Fourth Proportional to 445,825,207.40, 668,737,811.10 and 398,208,093.80
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Solution
The fourth proportional to 445,825,207.40, 668,737,811.10 and 398,208,093.80 is: 597,312,140.70
Step by Step Solution
- Step 1: Write the proportion equation
445,825,207.40 : 668,737,811.10 = 398,208,093.80 : x - Step 2: Convert to fraction form
445,825,207.40/668,737,811.10 = 398,208,093.80/x - Step 3: Cross multiply
445,825,207.40x = 668,737,811.10 × 398,208,093.80 - Step 4: Simplify right side
445,825,207.40x = 266,296,809,010,115,488 - Step 5: Solve for x
x = 266,296,809,010,115,488/445,825,207.40 - Step 6: Final answer
x = 597,312,140.70
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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.