Finding the Fourth Proportional to 1,594,327,877.20, 2,391,491,815.80 and 445,470,533.20
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Solution
The fourth proportional to 1,594,327,877.20, 2,391,491,815.80 and 445,470,533.20 is: 668,205,799.80
Step by Step Solution
- Step 1: Write the proportion equation
1,594,327,877.20 : 2,391,491,815.80 = 445,470,533.20 : x - Step 2: Convert to fraction form
1,594,327,877.20/2,391,491,815.80 = 445,470,533.20/x - Step 3: Cross multiply
1,594,327,877.20x = 2,391,491,815.80 × 445,470,533.20 - Step 4: Simplify right side
1,594,327,877.20x = 1,065,339,134,327,862,272 - Step 5: Solve for x
x = 1,065,339,134,327,862,272/1,594,327,877.20 - Step 6: Final answer
x = 668,205,799.80
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1.5x scale
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.