Finding the Fourth Proportional to 232,964,057.12, 321,497,127.88 and 128,548,852.52
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Solution
The fourth proportional to 232,964,057.12, 321,497,127.88 and 128,548,852.52 is: 177,401,129.54
Step by Step Solution
- Step 1: Write the proportion equation
232,964,057.12 : 321,497,127.88 = 128,548,852.52 : x - Step 2: Convert to fraction form
232,964,057.12/321,497,127.88 = 128,548,852.52/x - Step 3: Cross multiply
232,964,057.12x = 321,497,127.88 × 128,548,852.52 - Step 4: Simplify right side
232,964,057.12x = 41,328,086,875,520,840 - Step 5: Solve for x
x = 41,328,086,875,520,840/232,964,057.12 - Step 6: Final answer
x = 177,401,129.54
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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.