Finding the Fourth Proportional to 136,818,110.91, 205,554,570.10 and 87,730,138.62
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Solution
The fourth proportional to 136,818,110.91, 205,554,570.10 and 87,730,138.62 is: 131,805,144.87
Step by Step Solution
- Step 1: Write the proportion equation
136,818,110.91 : 205,554,570.10 = 87,730,138.62 : x - Step 2: Convert to fraction form
136,818,110.91/205,554,570.10 = 87,730,138.62/x - Step 3: Cross multiply
136,818,110.91x = 205,554,570.10 × 87,730,138.62 - Step 4: Simplify right side
136,818,110.91x = 18,033,330,928,847,508 - Step 5: Solve for x
x = 18,033,330,928,847,508/136,818,110.91 - Step 6: Final answer
x = 131,805,144.87
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.