Finding the Fourth Proportional to 3,350,403,811.92, 4,623,408,118.38 and 1,920,449,781.90
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Solution
The fourth proportional to 3,350,403,811.92, 4,623,408,118.38 and 1,920,449,781.90 is: 2,650,135,210.86
Step by Step Solution
- Step 1: Write the proportion equation
3,350,403,811.92 : 4,623,408,118.38 = 1,920,449,781.90 : x - Step 2: Convert to fraction form
3,350,403,811.92/4,623,408,118.38 = 1,920,449,781.90/x - Step 3: Cross multiply
3,350,403,811.92x = 4,623,408,118.38 × 1,920,449,781.90 - Step 4: Simplify right side
3,350,403,811.92x = 8,879,023,112,577,560,576 - Step 5: Solve for x
x = 8,879,023,112,577,560,576/3,350,403,811.92 - Step 6: Final answer
x = 2,650,135,210.86
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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.