Finding the Fourth Proportional to 6,245,812.90, 9,368,719.35 and 1,986,411.70
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Solution
The fourth proportional to 6,245,812.90, 9,368,719.35 and 1,986,411.70 is: 2,979,617.55
Step by Step Solution
- Step 1: Write the proportion equation
6,245,812.90 : 9,368,719.35 = 1,986,411.70 : x - Step 2: Convert to fraction form
6,245,812.90/9,368,719.35 = 1,986,411.70/x - Step 3: Cross multiply
6,245,812.90x = 9,368,719.35 × 1,986,411.70 - Step 4: Simplify right side
6,245,812.90x = 18,610,133,730,856.39 - Step 5: Solve for x
x = 18,610,133,730,856.39/6,245,812.90 - Step 6: Final answer
x = 2,979,617.55
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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.