Finding the Fourth Proportional to 81,256,447.16, 121,891,756.64 and 22,964,737.84
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Solution
The fourth proportional to 81,256,447.16, 121,891,756.64 and 22,964,737.84 is: 34,449,109.38
Step by Step Solution
- Step 1: Write the proportion equation
81,256,447.16 : 121,891,756.64 = 22,964,737.84 : x - Step 2: Convert to fraction form
81,256,447.16/121,891,756.64 = 22,964,737.84/x - Step 3: Cross multiply
81,256,447.16x = 121,891,756.64 × 22,964,737.84 - Step 4: Simplify right side
81,256,447.16x = 2,799,212,236,094,679.50 - Step 5: Solve for x
x = 2,799,212,236,094,679.50/81,256,447.16 - Step 6: Final answer
x = 34,449,109.38
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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.