Finding the Fourth Proportional to 1,353,024,147.20, 2,029,536,220.80 and 772,548,857.60
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Solution
The fourth proportional to 1,353,024,147.20, 2,029,536,220.80 and 772,548,857.60 is: 1,158,823,286.40
Step by Step Solution
- Step 1: Write the proportion equation
1,353,024,147.20 : 2,029,536,220.80 = 772,548,857.60 : x - Step 2: Convert to fraction form
1,353,024,147.20/2,029,536,220.80 = 772,548,857.60/x - Step 3: Cross multiply
1,353,024,147.20x = 2,029,536,220.80 × 772,548,857.60 - Step 4: Simplify right side
1,353,024,147.20x = 1,567,915,888,836,861,440 - Step 5: Solve for x
x = 1,567,915,888,836,861,440/1,353,024,147.20 - Step 6: Final answer
x = 1,158,823,286.40
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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.