Finding the Fourth Proportional to 2,589,162,807.40, 3,884,122,124.70 and 842,068,234.60
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Solution
The fourth proportional to 2,589,162,807.40, 3,884,122,124.70 and 842,068,234.60 is: 1,263,225,259.98
Step by Step Solution
- Step 1: Write the proportion equation
2,589,162,807.40 : 3,884,122,124.70 = 842,068,234.60 : x - Step 2: Convert to fraction form
2,589,162,807.40/3,884,122,124.70 = 842,068,234.60/x - Step 3: Cross multiply
2,589,162,807.40x = 3,884,122,124.70 × 842,068,234.60 - Step 4: Simplify right side
2,589,162,807.40x = 3,270,695,860,516,930,048 - Step 5: Solve for x
x = 3,270,695,860,516,930,048/2,589,162,807.40 - Step 6: Final answer
x = 1,263,225,259.98
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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.