Finding the Fourth Proportional to 403,994,507.24, 557,512,659.16 and 225,378,396.36
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Solution
The fourth proportional to 403,994,507.24, 557,512,659.16 and 225,378,396.36 is: 311,022,320.40
Step by Step Solution
- Step 1: Write the proportion equation
403,994,507.24 : 557,512,659.16 = 225,378,396.36 : x - Step 2: Convert to fraction form
403,994,507.24/557,512,659.16 = 225,378,396.36/x - Step 3: Cross multiply
403,994,507.24x = 557,512,659.16 × 225,378,396.36 - Step 4: Simplify right side
403,994,507.24x = 125,651,309,071,316,640 - Step 5: Solve for x
x = 125,651,309,071,316,640/403,994,507.24 - Step 6: Final answer
x = 311,022,320.40
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.