Finding the Fourth Proportional to 51,148,438.61, 76,771,163.04 and 31,658,709.97
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Solution
The fourth proportional to 51,148,438.61, 76,771,163.04 and 31,658,709.97 is: 47,518,087.57
Step by Step Solution
- Step 1: Write the proportion equation
51,148,438.61 : 76,771,163.04 = 31,658,709.97 : x - Step 2: Convert to fraction form
51,148,438.61/76,771,163.04 = 31,658,709.97/x - Step 3: Cross multiply
51,148,438.61x = 76,771,163.04 × 31,658,709.97 - Step 4: Simplify right side
51,148,438.61x = 2,430,475,984,720,187.50 - Step 5: Solve for x
x = 2,430,475,984,720,187.50/51,148,438.61 - Step 6: Final answer
x = 47,518,087.57
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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.