Finding the Fourth Proportional to 606,918,907.80, 910,378,361.70 and 453,863,899.80
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Solution
The fourth proportional to 606,918,907.80, 910,378,361.70 and 453,863,899.80 is: 680,795,849.70
Step by Step Solution
- Step 1: Write the proportion equation
606,918,907.80 : 910,378,361.70 = 453,863,899.80 : x - Step 2: Convert to fraction form
606,918,907.80/910,378,361.70 = 453,863,899.80/x - Step 3: Cross multiply
606,918,907.80x = 910,378,361.70 × 453,863,899.80 - Step 4: Simplify right side
606,918,907.80x = 413,187,873,534,696,960 - Step 5: Solve for x
x = 413,187,873,534,696,960/606,918,907.80 - Step 6: Final answer
x = 680,795,849.70
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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.