Finding the Fourth Proportional to 87,439,722.30, 131,159,583.45 and 84,920,298.30
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Solution
The fourth proportional to 87,439,722.30, 131,159,583.45 and 84,920,298.30 is: 127,380,447.45
Step by Step Solution
- Step 1: Write the proportion equation
87,439,722.30 : 131,159,583.45 = 84,920,298.30 : x - Step 2: Convert to fraction form
87,439,722.30/131,159,583.45 = 84,920,298.30/x - Step 3: Cross multiply
87,439,722.30x = 131,159,583.45 × 84,920,298.30 - Step 4: Simplify right side
87,439,722.30x = 11,138,110,951,477,742 - Step 5: Solve for x
x = 11,138,110,951,477,742/87,439,722.30 - Step 6: Final answer
x = 127,380,447.45
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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.