Finding the Fourth Proportional to 77,063,956.97, 115,621,632.14 and 51,257,993.94
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Solution
The fourth proportional to 77,063,956.97, 115,621,632.14 and 51,257,993.94 is: 76,904,082.70
Step by Step Solution
- Step 1: Write the proportion equation
77,063,956.97 : 115,621,632.14 = 51,257,993.94 : x - Step 2: Convert to fraction form
77,063,956.97/115,621,632.14 = 51,257,993.94/x - Step 3: Cross multiply
77,063,956.97x = 115,621,632.14 × 51,257,993.94 - Step 4: Simplify right side
77,063,956.97x = 5,926,532,919,308,739 - Step 5: Solve for x
x = 5,926,532,919,308,739/77,063,956.97 - Step 6: Final answer
x = 76,904,082.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.