Finding the Fourth Proportional to 1,430,784,080.80, 2,146,176,121.20 and 461,533,674.40
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Solution
The fourth proportional to 1,430,784,080.80, 2,146,176,121.20 and 461,533,674.40 is: 692,300,511.60
Step by Step Solution
- Step 1: Write the proportion equation
1,430,784,080.80 : 2,146,176,121.20 = 461,533,674.40 : x - Step 2: Convert to fraction form
1,430,784,080.80/2,146,176,121.20 = 461,533,674.40/x - Step 3: Cross multiply
1,430,784,080.80x = 2,146,176,121.20 × 461,533,674.40 - Step 4: Simplify right side
1,430,784,080.80x = 990,532,551,126,975,744 - Step 5: Solve for x
x = 990,532,551,126,975,744/1,430,784,080.80 - Step 6: Final answer
x = 692,300,511.60
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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.