Finding the Fourth Proportional to 1,389,828,129.05, 2,084,740,433.04 and 354,689,033.24
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Solution
The fourth proportional to 1,389,828,129.05, 2,084,740,433.04 and 354,689,033.24 is: 532,033,100.56
Step by Step Solution
- Step 1: Write the proportion equation
1,389,828,129.05 : 2,084,740,433.04 = 354,689,033.24 : x - Step 2: Convert to fraction form
1,389,828,129.05/2,084,740,433.04 = 354,689,033.24/x - Step 3: Cross multiply
1,389,828,129.05x = 2,084,740,433.04 × 354,689,033.24 - Step 4: Simplify right side
1,389,828,129.05x = 739,434,568,740,872,832 - Step 5: Solve for x
x = 739,434,568,740,872,832/1,389,828,129.05 - Step 6: Final answer
x = 532,033,100.56
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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.