Finding the Fourth Proportional to 664,449,325.20, 996,673,987.80 and 664,449,325.20
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Solution
The fourth proportional to 664,449,325.20, 996,673,987.80 and 664,449,325.20 is: 996,673,987.80
Step by Step Solution
- Step 1: Write the proportion equation
664,449,325.20 : 996,673,987.80 = 664,449,325.20 : x - Step 2: Convert to fraction form
664,449,325.20/996,673,987.80 = 664,449,325.20/x - Step 3: Cross multiply
664,449,325.20x = 996,673,987.80 × 664,449,325.20 - Step 4: Simplify right side
664,449,325.20x = 662,239,358,638,103,040 - Step 5: Solve for x
x = 662,239,358,638,103,040/664,449,325.20 - Step 6: Final answer
x = 996,673,987.80
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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.