Finding the Fourth Proportional to 746,757,321.90, 1,120,135,982.85 and 201,497,981.10
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Solution
The fourth proportional to 746,757,321.90, 1,120,135,982.85 and 201,497,981.10 is: 302,246,971.65
Step by Step Solution
- Step 1: Write the proportion equation
746,757,321.90 : 1,120,135,982.85 = 201,497,981.10 : x - Step 2: Convert to fraction form
746,757,321.90/1,120,135,982.85 = 201,497,981.10/x - Step 3: Cross multiply
746,757,321.90x = 1,120,135,982.85 × 201,497,981.10 - Step 4: Simplify right side
746,757,321.90x = 225,705,139,101,739,200 - Step 5: Solve for x
x = 225,705,139,101,739,200/746,757,321.90 - Step 6: Final answer
x = 302,246,971.65
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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.