Finding the Fourth Proportional to 2,118,889,138.95, 3,178,333,708.43 and 1,659,220,230.15
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Solution
The fourth proportional to 2,118,889,138.95, 3,178,333,708.43 and 1,659,220,230.15 is: 2,488,830,345.23
Step by Step Solution
- Step 1: Write the proportion equation
2,118,889,138.95 : 3,178,333,708.43 = 1,659,220,230.15 : x - Step 2: Convert to fraction form
2,118,889,138.95/3,178,333,708.43 = 1,659,220,230.15/x - Step 3: Cross multiply
2,118,889,138.95x = 3,178,333,708.43 × 1,659,220,230.15 - Step 4: Simplify right side
2,118,889,138.95x = 5,273,555,587,186,432,000 - Step 5: Solve for x
x = 5,273,555,587,186,432,000/2,118,889,138.95 - Step 6: Final answer
x = 2,488,830,345.23
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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.