Finding the Fourth Proportional to 127,923,604.80, 191,727,943.20 and 86,982,964.80
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Solution
The fourth proportional to 127,923,604.80, 191,727,943.20 and 86,982,964.80 is: 130,367,377.94
Step by Step Solution
- Step 1: Write the proportion equation
127,923,604.80 : 191,727,943.20 = 86,982,964.80 : x - Step 2: Convert to fraction form
127,923,604.80/191,727,943.20 = 86,982,964.80/x - Step 3: Cross multiply
127,923,604.80x = 191,727,943.20 × 86,982,964.80 - Step 4: Simplify right side
127,923,604.80x = 16,677,064,934,541,998 - Step 5: Solve for x
x = 16,677,064,934,541,998/127,923,604.80 - Step 6: Final answer
x = 130,367,377.94
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1.5x scale
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.