Finding the Fourth Proportional to 802,338,631.80, 1,203,507,947.70 and 343,173,607.80
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Solution
The fourth proportional to 802,338,631.80, 1,203,507,947.70 and 343,173,607.80 is: 514,760,411.70
Step by Step Solution
- Step 1: Write the proportion equation
802,338,631.80 : 1,203,507,947.70 = 343,173,607.80 : x - Step 2: Convert to fraction form
802,338,631.80/1,203,507,947.70 = 343,173,607.80/x - Step 3: Cross multiply
802,338,631.80x = 1,203,507,947.70 × 343,173,607.80 - Step 4: Simplify right side
802,338,631.80x = 413,012,164,428,182,720 - Step 5: Solve for x
x = 413,012,164,428,182,720/802,338,631.80 - Step 6: Final answer
x = 514,760,411.70
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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.