Finding the Fourth Proportional to 2,299,401,971.80, 3,449,102,957.70 and 663,679,936.60
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Solution
The fourth proportional to 2,299,401,971.80, 3,449,102,957.70 and 663,679,936.60 is: 995,519,904.90
Step by Step Solution
- Step 1: Write the proportion equation
2,299,401,971.80 : 3,449,102,957.70 = 663,679,936.60 : x - Step 2: Convert to fraction form
2,299,401,971.80/3,449,102,957.70 = 663,679,936.60/x - Step 3: Cross multiply
2,299,401,971.80x = 3,449,102,957.70 × 663,679,936.60 - Step 4: Simplify right side
2,299,401,971.80x = 2,289,100,432,293,208,320 - Step 5: Solve for x
x = 2,289,100,432,293,208,320/2,299,401,971.80 - Step 6: Final answer
x = 995,519,904.90
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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.