Finding the Fourth Proportional to 330,415,018.84, 455,972,959.86 and 181,747,450.92
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Solution
The fourth proportional to 330,415,018.84, 455,972,959.86 and 181,747,450.92 is: 250,811,610.91
Step by Step Solution
- Step 1: Write the proportion equation
330,415,018.84 : 455,972,959.86 = 181,747,450.92 : x - Step 2: Convert to fraction form
330,415,018.84/455,972,959.86 = 181,747,450.92/x - Step 3: Cross multiply
330,415,018.84x = 455,972,959.86 × 181,747,450.92 - Step 4: Simplify right side
330,415,018.84x = 82,871,923,143,002,480 - Step 5: Solve for x
x = 82,871,923,143,002,480/330,415,018.84 - Step 6: Final answer
x = 250,811,610.91
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1.5x scale
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.