Finding the Fourth Proportional to 128,122,351.24, 176,807,964.31 and 69,383,672.19
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Solution
The fourth proportional to 128,122,351.24, 176,807,964.31 and 69,383,672.19 is: 95,748,990.85
Step by Step Solution
- Step 1: Write the proportion equation
128,122,351.24 : 176,807,964.31 = 69,383,672.19 : x - Step 2: Convert to fraction form
128,122,351.24/176,807,964.31 = 69,383,672.19/x - Step 3: Cross multiply
128,122,351.24x = 176,807,964.31 × 69,383,672.19 - Step 4: Simplify right side
128,122,351.24x = 12,267,585,836,092,800 - Step 5: Solve for x
x = 12,267,585,836,092,800/128,122,351.24 - Step 6: Final answer
x = 95,748,990.85
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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.