Finding the Fourth Proportional to 1,235,454,685.87, 1,853,252,065.56 and 395,171,236.65
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Solution
The fourth proportional to 1,235,454,685.87, 1,853,252,065.56 and 395,171,236.65 is: 592,779,256.85
Step by Step Solution
- Step 1: Write the proportion equation
1,235,454,685.87 : 1,853,252,065.56 = 395,171,236.65 : x - Step 2: Convert to fraction form
1,235,454,685.87/1,853,252,065.56 = 395,171,236.65/x - Step 3: Cross multiply
1,235,454,685.87x = 1,853,252,065.56 × 395,171,236.65 - Step 4: Simplify right side
1,235,454,685.87x = 732,351,910,563,840,512 - Step 5: Solve for x
x = 732,351,910,563,840,512/1,235,454,685.87 - Step 6: Final answer
x = 592,779,256.85
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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.