Finding the Fourth Proportional to 2,118,889,126.70, 3,178,333,690.05 and 1,659,220,217.90
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Solution
The fourth proportional to 2,118,889,126.70, 3,178,333,690.05 and 1,659,220,217.90 is: 2,488,830,326.85
Step by Step Solution
- Step 1: Write the proportion equation
2,118,889,126.70 : 3,178,333,690.05 = 1,659,220,217.90 : x - Step 2: Convert to fraction form
2,118,889,126.70/3,178,333,690.05 = 1,659,220,217.90/x - Step 3: Cross multiply
2,118,889,126.70x = 3,178,333,690.05 × 1,659,220,217.90 - Step 4: Simplify right side
2,118,889,126.70x = 5,273,555,517,763,673,088 - Step 5: Solve for x
x = 5,273,555,517,763,673,088/2,118,889,126.70 - Step 6: Final answer
x = 2,488,830,326.85
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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.