Finding the Fourth Proportional to 2,808,133,035.70, 4,212,199,553.55 and 1,991,839,659.70
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Solution
The fourth proportional to 2,808,133,035.70, 4,212,199,553.55 and 1,991,839,659.70 is: 2,987,759,489.55
Step by Step Solution
- Step 1: Write the proportion equation
2,808,133,035.70 : 4,212,199,553.55 = 1,991,839,659.70 : x - Step 2: Convert to fraction form
2,808,133,035.70/4,212,199,553.55 = 1,991,839,659.70/x - Step 3: Cross multiply
2,808,133,035.70x = 4,212,199,553.55 × 1,991,839,659.70 - Step 4: Simplify right side
2,808,133,035.70x = 8,390,026,125,331,524,608 - Step 5: Solve for x
x = 8,390,026,125,331,524,608/2,808,133,035.70 - Step 6: Final answer
x = 2,987,759,489.55
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Double scale
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1.5x scale
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.