Finding the Fourth Proportional to 690,372,519.19, 952,714,040.05 and 372,832,734.54
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Solution
The fourth proportional to 690,372,519.19, 952,714,040.05 and 372,832,734.54 is: 514,509,153.99
Step by Step Solution
- Step 1: Write the proportion equation
690,372,519.19 : 952,714,040.05 = 372,832,734.54 : x - Step 2: Convert to fraction form
690,372,519.19/952,714,040.05 = 372,832,734.54/x - Step 3: Cross multiply
690,372,519.19x = 952,714,040.05 × 372,832,734.54 - Step 4: Simplify right side
690,372,519.19x = 355,202,980,787,593,920 - Step 5: Solve for x
x = 355,202,980,787,593,920/690,372,519.19 - Step 6: Final answer
x = 514,509,153.99
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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.