Finding the Fourth Proportional to 1,303,848,014.40, 1,955,772,021.60 and 430,584,163.20
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Solution
The fourth proportional to 1,303,848,014.40, 1,955,772,021.60 and 430,584,163.20 is: 645,876,244.80
Step by Step Solution
- Step 1: Write the proportion equation
1,303,848,014.40 : 1,955,772,021.60 = 430,584,163.20 : x - Step 2: Convert to fraction form
1,303,848,014.40/1,955,772,021.60 = 430,584,163.20/x - Step 3: Cross multiply
1,303,848,014.40x = 1,955,772,021.60 × 430,584,163.20 - Step 4: Simplify right side
1,303,848,014.40x = 842,124,459,330,608,256 - Step 5: Solve for x
x = 842,124,459,330,608,256/1,303,848,014.40 - Step 6: Final answer
x = 645,876,244.80
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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.