Finding the Fourth Proportional to 8,159,455,730.40, 12,239,183,595.60 and 2,642,672,997.60
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Solution
The fourth proportional to 8,159,455,730.40, 12,239,183,595.60 and 2,642,672,997.60 is: 3,964,009,496.40
Step by Step Solution
- Step 1: Write the proportion equation
8,159,455,730.40 : 12,239,183,595.60 = 2,642,672,997.60 : x - Step 2: Convert to fraction form
8,159,455,730.40/12,239,183,595.60 = 2,642,672,997.60/x - Step 3: Cross multiply
8,159,455,730.40x = 12,239,183,595.60 × 2,642,672,997.60 - Step 4: Simplify right side
8,159,455,730.40x = 32,344,160,000,760,999,936 - Step 5: Solve for x
x = 32,344,160,000,760,999,936/8,159,455,730.40 - Step 6: Final answer
x = 3,964,009,496.40
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1.5x scale
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.