Finding the Fourth Proportional to 2,645,998,639.18, 3,969,595,905.02 and 875,365,204.95
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Solution
The fourth proportional to 2,645,998,639.18, 3,969,595,905.02 and 875,365,204.95 is: 1,313,245,623.60
Step by Step Solution
- Step 1: Write the proportion equation
2,645,998,639.18 : 3,969,595,905.02 = 875,365,204.95 : x - Step 2: Convert to fraction form
2,645,998,639.18/3,969,595,905.02 = 875,365,204.95/x - Step 3: Cross multiply
2,645,998,639.18x = 3,969,595,905.02 × 875,365,204.95 - Step 4: Simplify right side
2,645,998,639.18x = 3,474,846,132,966,513,152 - Step 5: Solve for x
x = 3,474,846,132,966,513,152/2,645,998,639.18 - Step 6: Final answer
x = 1,313,245,623.60
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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.