Finding the Fourth Proportional to 1,346,449,553.20, 2,019,674,329.80 and 829,888,901.20
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Solution
The fourth proportional to 1,346,449,553.20, 2,019,674,329.80 and 829,888,901.20 is: 1,244,833,351.80
Step by Step Solution
- Step 1: Write the proportion equation
1,346,449,553.20 : 2,019,674,329.80 = 829,888,901.20 : x - Step 2: Convert to fraction form
1,346,449,553.20/2,019,674,329.80 = 829,888,901.20/x - Step 3: Cross multiply
1,346,449,553.20x = 2,019,674,329.80 × 829,888,901.20 - Step 4: Simplify right side
1,346,449,553.20x = 1,676,105,310,339,568,384 - Step 5: Solve for x
x = 1,676,105,310,339,568,384/1,346,449,553.20 - Step 6: Final answer
x = 1,244,833,351.80
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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.