Finding the Fourth Proportional to 315,474,410.70, 473,211,616.05 and 261,726,698.70
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Solution
The fourth proportional to 315,474,410.70, 473,211,616.05 and 261,726,698.70 is: 392,590,048.05
Step by Step Solution
- Step 1: Write the proportion equation
315,474,410.70 : 473,211,616.05 = 261,726,698.70 : x - Step 2: Convert to fraction form
315,474,410.70/473,211,616.05 = 261,726,698.70/x - Step 3: Cross multiply
315,474,410.70x = 473,211,616.05 × 261,726,698.70 - Step 4: Simplify right side
315,474,410.70x = 123,852,114,055,258,432 - Step 5: Solve for x
x = 123,852,114,055,258,432/315,474,410.70 - Step 6: Final answer
x = 392,590,048.05
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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.