Finding the Fourth Proportional to 372,267,121.15, 513,712,055.76 and 213,383,340.19
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Solution
The fourth proportional to 372,267,121.15, 513,712,055.76 and 213,383,340.19 is: 294,459,510.73
Step by Step Solution
- Step 1: Write the proportion equation
372,267,121.15 : 513,712,055.76 = 213,383,340.19 : x - Step 2: Convert to fraction form
372,267,121.15/513,712,055.76 = 213,383,340.19/x - Step 3: Cross multiply
372,267,121.15x = 513,712,055.76 × 213,383,340.19 - Step 4: Simplify right side
372,267,121.15x = 109,617,594,351,371,760 - Step 5: Solve for x
x = 109,617,594,351,371,760/372,267,121.15 - Step 6: Final answer
x = 294,459,510.73
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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.