Finding the Fourth Proportional to 709,647,067.20, 1,064,470,600.80 and 403,882,305.60
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Solution
The fourth proportional to 709,647,067.20, 1,064,470,600.80 and 403,882,305.60 is: 605,823,458.40
Step by Step Solution
- Step 1: Write the proportion equation
709,647,067.20 : 1,064,470,600.80 = 403,882,305.60 : x - Step 2: Convert to fraction form
709,647,067.20/1,064,470,600.80 = 403,882,305.60/x - Step 3: Cross multiply
709,647,067.20x = 1,064,470,600.80 × 403,882,305.60 - Step 4: Simplify right side
709,647,067.20x = 429,920,840,494,521,216 - Step 5: Solve for x
x = 429,920,840,494,521,216/709,647,067.20 - Step 6: Final answer
x = 605,823,458.40
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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.