Finding the Fourth Proportional to 1,290,284,701.46, 1,935,438,253.02 and 416,886,163.05
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Solution
The fourth proportional to 1,290,284,701.46, 1,935,438,253.02 and 416,886,163.05 is: 625,332,863.53
Step by Step Solution
- Step 1: Write the proportion equation
1,290,284,701.46 : 1,935,438,253.02 = 416,886,163.05 : x - Step 2: Convert to fraction form
1,290,284,701.46/1,935,438,253.02 = 416,886,163.05/x - Step 3: Cross multiply
1,290,284,701.46x = 1,935,438,253.02 × 416,886,163.05 - Step 4: Simplify right side
1,290,284,701.46x = 806,857,427,128,941,440 - Step 5: Solve for x
x = 806,857,427,128,941,440/1,290,284,701.46 - Step 6: Final answer
x = 625,332,863.53
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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.