Finding the Fourth Proportional to 54,890,163.84, 75,747,719.81 and 31,368,430.80
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Solution
The fourth proportional to 54,890,163.84, 75,747,719.81 and 31,368,430.80 is: 43,288,030.88
Step by Step Solution
- Step 1: Write the proportion equation
54,890,163.84 : 75,747,719.81 = 31,368,430.80 : x - Step 2: Convert to fraction form
54,890,163.84/75,747,719.81 = 31,368,430.80/x - Step 3: Cross multiply
54,890,163.84x = 75,747,719.81 × 31,368,430.80 - Step 4: Simplify right side
54,890,163.84x = 2,376,087,107,321,034.50 - Step 5: Solve for x
x = 2,376,087,107,321,034.50/54,890,163.84 - Step 6: Final answer
x = 43,288,030.88
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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.