Finding the Fourth Proportional to 1,474,309,064.40, 2,211,774,183.53 and 478,252,319.31
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Solution
The fourth proportional to 1,474,309,064.40, 2,211,774,183.53 and 478,252,319.31 is: 717,479,230.51
Step by Step Solution
- Step 1: Write the proportion equation
1,474,309,064.40 : 2,211,774,183.53 = 478,252,319.31 : x - Step 2: Convert to fraction form
1,474,309,064.40/2,211,774,183.53 = 478,252,319.31/x - Step 3: Cross multiply
1,474,309,064.40x = 2,211,774,183.53 × 478,252,319.31 - Step 4: Simplify right side
1,474,309,064.40x = 1,057,786,133,063,204,224 - Step 5: Solve for x
x = 1,057,786,133,063,204,224/1,474,309,064.40 - Step 6: Final answer
x = 717,479,230.51
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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.