Finding the Fourth Proportional to 996,909,728.70, 1,495,364,593.05 and 670,392,378.30
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Solution
The fourth proportional to 996,909,728.70, 1,495,364,593.05 and 670,392,378.30 is: 1,005,588,567.45
Step by Step Solution
- Step 1: Write the proportion equation
996,909,728.70 : 1,495,364,593.05 = 670,392,378.30 : x - Step 2: Convert to fraction form
996,909,728.70/1,495,364,593.05 = 670,392,378.30/x - Step 3: Cross multiply
996,909,728.70x = 1,495,364,593.05 × 670,392,378.30 - Step 4: Simplify right side
996,909,728.70x = 1,002,481,025,960,401,024 - Step 5: Solve for x
x = 1,002,481,025,960,401,024/996,909,728.70 - Step 6: Final answer
x = 1,005,588,567.45
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Double scale
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Similar ratio
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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.