Finding the Fourth Proportional to 128,040,415.58, 192,060,761.92 and 59,930,937.02
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Solution
The fourth proportional to 128,040,415.58, 192,060,761.92 and 59,930,937.02 is: 89,896,470.38
Step by Step Solution
- Step 1: Write the proportion equation
128,040,415.58 : 192,060,761.92 = 59,930,937.02 : x - Step 2: Convert to fraction form
128,040,415.58/192,060,761.92 = 59,930,937.02/x - Step 3: Cross multiply
128,040,415.58x = 192,060,761.92 × 59,930,937.02 - Step 4: Simplify right side
128,040,415.58x = 11,510,381,426,971,058 - Step 5: Solve for x
x = 11,510,381,426,971,058/128,040,415.58 - Step 6: Final answer
x = 89,896,470.38
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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.