Finding the Fourth Proportional to 747,339,769.20, 1,121,009,653.80 and 553,629,524.70
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Solution
The fourth proportional to 747,339,769.20, 1,121,009,653.80 and 553,629,524.70 is: 830,444,287.05
Step by Step Solution
- Step 1: Write the proportion equation
747,339,769.20 : 1,121,009,653.80 = 553,629,524.70 : x - Step 2: Convert to fraction form
747,339,769.20/1,121,009,653.80 = 553,629,524.70/x - Step 3: Cross multiply
747,339,769.20x = 1,121,009,653.80 × 553,629,524.70 - Step 4: Simplify right side
747,339,769.20x = 620,624,041,817,405,568 - Step 5: Solve for x
x = 620,624,041,817,405,568/747,339,769.20 - Step 6: Final answer
x = 830,444,287.05
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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.