Finding the Fourth Proportional to 71,779,228.10, 107,668,842.15 and 66,236,495.30
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Solution
The fourth proportional to 71,779,228.10, 107,668,842.15 and 66,236,495.30 is: 99,354,742.95
Step by Step Solution
- Step 1: Write the proportion equation
71,779,228.10 : 107,668,842.15 = 66,236,495.30 : x - Step 2: Convert to fraction form
71,779,228.10/107,668,842.15 = 66,236,495.30/x - Step 3: Cross multiply
71,779,228.10x = 107,668,842.15 × 66,236,495.30 - Step 4: Simplify right side
71,779,228.10x = 7,131,606,757,024,917 - Step 5: Solve for x
x = 7,131,606,757,024,917/71,779,228.10 - Step 6: Final answer
x = 99,354,742.95
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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.