Finding the Fourth Proportional to 128,040,927.80, 192,097,353.24 and 51,417,764.42
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Solution
The fourth proportional to 128,040,927.80, 192,097,353.24 and 51,417,764.42 is: 77,141,087.80
Step by Step Solution
- Step 1: Write the proportion equation
128,040,927.80 : 192,097,353.24 = 51,417,764.42 : x - Step 2: Convert to fraction form
128,040,927.80/192,097,353.24 = 51,417,764.42/x - Step 3: Cross multiply
128,040,927.80x = 192,097,353.24 × 51,417,764.42 - Step 4: Simplify right side
128,040,927.80x = 9,877,216,453,639,358 - Step 5: Solve for x
x = 9,877,216,453,639,358/128,040,927.80 - Step 6: Final answer
x = 77,141,087.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.