Finding the Fourth Proportional to 99,822,071.70, 149,733,107.55 and 28,018,487.70
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Solution
The fourth proportional to 99,822,071.70, 149,733,107.55 and 28,018,487.70 is: 42,027,731.55
Step by Step Solution
- Step 1: Write the proportion equation
99,822,071.70 : 149,733,107.55 = 28,018,487.70 : x - Step 2: Convert to fraction form
99,822,071.70/149,733,107.55 = 28,018,487.70/x - Step 3: Cross multiply
99,822,071.70x = 149,733,107.55 × 28,018,487.70 - Step 4: Simplify right side
99,822,071.70x = 4,195,295,232,172,452.50 - Step 5: Solve for x
x = 4,195,295,232,172,452.50/99,822,071.70 - Step 6: Final answer
x = 42,027,731.55
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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.