Finding the Fourth Proportional to 128,185,786.01, 176,896,145.36 and 69,449,910.95
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Solution
The fourth proportional to 128,185,786.01, 176,896,145.36 and 69,449,910.95 is: 95,840,747.44
Step by Step Solution
- Step 1: Write the proportion equation
128,185,786.01 : 176,896,145.36 = 69,449,910.95 : x - Step 2: Convert to fraction form
128,185,786.01/176,896,145.36 = 69,449,910.95/x - Step 3: Cross multiply
128,185,786.01x = 176,896,145.36 × 69,449,910.95 - Step 4: Simplify right side
128,185,786.01x = 12,285,421,542,303,006 - Step 5: Solve for x
x = 12,285,421,542,303,006/128,185,786.01 - Step 6: Final answer
x = 95,840,747.44
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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.