Finding the Fourth Proportional to 31,507,634.04, 47,257,251.30 and 8,786,628.60
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Solution
The fourth proportional to 31,507,634.04, 47,257,251.30 and 8,786,628.60 is: 13,178,771.70
Step by Step Solution
- Step 1: Write the proportion equation
31,507,634.04 : 47,257,251.30 = 8,786,628.60 : x - Step 2: Convert to fraction form
31,507,634.04/47,257,251.30 = 8,786,628.60/x - Step 3: Cross multiply
31,507,634.04x = 47,257,251.30 × 8,786,628.60 - Step 4: Simplify right side
31,507,634.04x = 415,231,915,829,967.12 - Step 5: Solve for x
x = 415,231,915,829,967.12/31,507,634.04 - Step 6: Final answer
x = 13,178,771.70
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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.