Finding the Fourth Proportional to 3,976,430,794.98, 5,487,480,543.69 and 2,216,260,411.62
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Solution
The fourth proportional to 3,976,430,794.98, 5,487,480,543.69 and 2,216,260,411.62 is: 3,058,442,738.11
Step by Step Solution
- Step 1: Write the proportion equation
3,976,430,794.98 : 5,487,480,543.69 = 2,216,260,411.62 : x - Step 2: Convert to fraction form
3,976,430,794.98/5,487,480,543.69 = 2,216,260,411.62/x - Step 3: Cross multiply
3,976,430,794.98x = 5,487,480,543.69 × 2,216,260,411.62 - Step 4: Simplify right side
3,976,430,794.98x = 12,161,685,888,515,139,584 - Step 5: Solve for x
x = 12,161,685,888,515,139,584/3,976,430,794.98 - Step 6: Final answer
x = 3,058,442,738.11
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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.