Finding the Fourth Proportional to 2,812,655,657.62, 4,218,572,794.26 and 820,162,289.98
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Solution
The fourth proportional to 2,812,655,657.62, 4,218,572,794.26 and 820,162,289.98 is: 1,230,123,678.32
Step by Step Solution
- Step 1: Write the proportion equation
2,812,655,657.62 : 4,218,572,794.26 = 820,162,289.98 : x - Step 2: Convert to fraction form
2,812,655,657.62/4,218,572,794.26 = 820,162,289.98/x - Step 3: Cross multiply
2,812,655,657.62x = 4,218,572,794.26 × 820,162,289.98 - Step 4: Simplify right side
2,812,655,657.62x = 3,459,914,323,387,609,088 - Step 5: Solve for x
x = 3,459,914,323,387,609,088/2,812,655,657.62 - Step 6: Final answer
x = 1,230,123,678.32
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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.