Finding the Fourth Proportional to 12,429,430.70, 17,149,589.48 and 8,185,562.36
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Solution
The fourth proportional to 12,429,430.70, 17,149,589.48 and 8,185,562.36 is: 11,294,083.97
Step by Step Solution
- Step 1: Write the proportion equation
12,429,430.70 : 17,149,589.48 = 8,185,562.36 : x - Step 2: Convert to fraction form
12,429,430.70/17,149,589.48 = 8,185,562.36/x - Step 3: Cross multiply
12,429,430.70x = 17,149,589.48 × 8,185,562.36 - Step 4: Simplify right side
12,429,430.70x = 140,379,034,010,264.23 - Step 5: Solve for x
x = 140,379,034,010,264.23/12,429,430.70 - Step 6: Final answer
x = 11,294,083.97
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.