Finding the Fourth Proportional to 187,612,584.28, 258,905,391.20 and 103,986,108.08
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Solution
The fourth proportional to 187,612,584.28, 258,905,391.20 and 103,986,108.08 is: 143,500,842.95
Step by Step Solution
- Step 1: Write the proportion equation
187,612,584.28 : 258,905,391.20 = 103,986,108.08 : x - Step 2: Convert to fraction form
187,612,584.28/258,905,391.20 = 103,986,108.08/x - Step 3: Cross multiply
187,612,584.28x = 258,905,391.20 × 103,986,108.08 - Step 4: Simplify right side
187,612,584.28x = 26,922,563,991,817,880 - Step 5: Solve for x
x = 26,922,563,991,817,880/187,612,584.28 - Step 6: Final answer
x = 143,500,842.95
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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.