Finding the Fourth Proportional to 839,809,849.80, 1,259,714,774.70 and 294,354,553.80
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Solution
The fourth proportional to 839,809,849.80, 1,259,714,774.70 and 294,354,553.80 is: 441,531,830.70
Step by Step Solution
- Step 1: Write the proportion equation
839,809,849.80 : 1,259,714,774.70 = 294,354,553.80 : x - Step 2: Convert to fraction form
839,809,849.80/1,259,714,774.70 = 294,354,553.80/x - Step 3: Cross multiply
839,809,849.80x = 1,259,714,774.70 × 294,354,553.80 - Step 4: Simplify right side
839,809,849.80x = 370,802,780,422,086,080 - Step 5: Solve for x
x = 370,802,780,422,086,080/839,809,849.80 - Step 6: Final answer
x = 441,531,830.70
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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.