Finding the Fourth Proportional to 221,479,939.70, 332,219,909.55 and 106,436,741.30
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Solution
The fourth proportional to 221,479,939.70, 332,219,909.55 and 106,436,741.30 is: 159,655,111.95
Step by Step Solution
- Step 1: Write the proportion equation
221,479,939.70 : 332,219,909.55 = 106,436,741.30 : x - Step 2: Convert to fraction form
221,479,939.70/332,219,909.55 = 106,436,741.30/x - Step 3: Cross multiply
221,479,939.70x = 332,219,909.55 × 106,436,741.30 - Step 4: Simplify right side
221,479,939.70x = 35,360,404,567,482,748 - Step 5: Solve for x
x = 35,360,404,567,482,748/221,479,939.70 - Step 6: Final answer
x = 159,655,111.95
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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.