Finding the Fourth Proportional to 81,485,659.65, 122,228,489.48 and 26,906,668.95
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Solution
The fourth proportional to 81,485,659.65, 122,228,489.48 and 26,906,668.95 is: 40,360,003.43
Step by Step Solution
- Step 1: Write the proportion equation
81,485,659.65 : 122,228,489.48 = 26,906,668.95 : x - Step 2: Convert to fraction form
81,485,659.65/122,228,489.48 = 26,906,668.95/x - Step 3: Cross multiply
81,485,659.65x = 122,228,489.48 × 26,906,668.95 - Step 4: Simplify right side
81,485,659.65x = 3,288,761,502,562,384 - Step 5: Solve for x
x = 3,288,761,502,562,384/81,485,659.65 - Step 6: Final answer
x = 40,360,003.43
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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.