Finding the Fourth Proportional to 81,080,134.99, 111,901,718.60 and 49,712,635.51
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Solution
The fourth proportional to 81,080,134.99, 111,901,718.60 and 49,712,635.51 is: 68,610,262.55
Step by Step Solution
- Step 1: Write the proportion equation
81,080,134.99 : 111,901,718.60 = 49,712,635.51 : x - Step 2: Convert to fraction form
81,080,134.99/111,901,718.60 = 49,712,635.51/x - Step 3: Cross multiply
81,080,134.99x = 111,901,718.60 × 49,712,635.51 - Step 4: Simplify right side
81,080,134.99x = 5,562,929,349,362,492 - Step 5: Solve for x
x = 5,562,929,349,362,492/81,080,134.99 - Step 6: Final answer
x = 68,610,262.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.