Finding the Fourth Proportional to 87,436,107.56, 130,587,277.36 and 79,222,338.98
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Solution
The fourth proportional to 87,436,107.56, 130,587,277.36 and 79,222,338.98 is: 118,319,877.70
Step by Step Solution
- Step 1: Write the proportion equation
87,436,107.56 : 130,587,277.36 = 79,222,338.98 : x - Step 2: Convert to fraction form
87,436,107.56/130,587,277.36 = 79,222,338.98/x - Step 3: Cross multiply
87,436,107.56x = 130,587,277.36 × 79,222,338.98 - Step 4: Simplify right side
87,436,107.56x = 10,345,429,553,489,200 - Step 5: Solve for x
x = 10,345,429,553,489,200/87,436,107.56 - Step 6: Final answer
x = 118,319,877.70
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.