Finding the Fourth Proportional to 67,305,639.51, 92,888,339.99 and 39,812,425.11
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Solution
The fourth proportional to 67,305,639.51, 92,888,339.99 and 39,812,425.11 is: 54,945,025.50
Step by Step Solution
- Step 1: Write the proportion equation
67,305,639.51 : 92,888,339.99 = 39,812,425.11 : x - Step 2: Convert to fraction form
67,305,639.51/92,888,339.99 = 39,812,425.11/x - Step 3: Cross multiply
67,305,639.51x = 92,888,339.99 × 39,812,425.11 - Step 4: Simplify right side
67,305,639.51x = 3,698,110,079,245,031 - Step 5: Solve for x
x = 3,698,110,079,245,031/67,305,639.51 - Step 6: Final answer
x = 54,945,025.50
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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.