Finding the Fourth Proportional to 87,436,120.56, 130,587,296.76 and 79,222,351.98
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Solution
The fourth proportional to 87,436,120.56, 130,587,296.76 and 79,222,351.98 is: 118,319,897.11
Step by Step Solution
- Step 1: Write the proportion equation
87,436,120.56 : 130,587,296.76 = 79,222,351.98 : x - Step 2: Convert to fraction form
87,436,120.56/130,587,296.76 = 79,222,351.98/x - Step 3: Cross multiply
87,436,120.56x = 130,587,296.76 × 79,222,351.98 - Step 4: Simplify right side
87,436,120.56x = 10,345,432,788,037,434 - Step 5: Solve for x
x = 10,345,432,788,037,434/87,436,120.56 - Step 6: Final answer
x = 118,319,897.11
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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.