Finding the Fourth Proportional to 688,785,858.99, 1,032,633,175.73 and 343,561,785.39
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Solution
The fourth proportional to 688,785,858.99, 1,032,633,175.73 and 343,561,785.39 is: 515,070,530.08
Step by Step Solution
- Step 1: Write the proportion equation
688,785,858.99 : 1,032,633,175.73 = 343,561,785.39 : x - Step 2: Convert to fraction form
688,785,858.99/1,032,633,175.73 = 343,561,785.39/x - Step 3: Cross multiply
688,785,858.99x = 1,032,633,175.73 × 343,561,785.39 - Step 4: Simplify right side
688,785,858.99x = 354,773,297,505,026,624 - Step 5: Solve for x
x = 354,773,297,505,026,624/688,785,858.99 - Step 6: Final answer
x = 515,070,530.08
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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.