Finding the Fourth Proportional to 402,409,183.15, 603,613,774.73 and 387,103,682.35
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Solution
The fourth proportional to 402,409,183.15, 603,613,774.73 and 387,103,682.35 is: 580,655,523.53
Step by Step Solution
- Step 1: Write the proportion equation
402,409,183.15 : 603,613,774.73 = 387,103,682.35 : x - Step 2: Convert to fraction form
402,409,183.15/603,613,774.73 = 387,103,682.35/x - Step 3: Cross multiply
402,409,183.15x = 603,613,774.73 × 387,103,682.35 - Step 4: Simplify right side
402,409,183.15x = 233,661,114,915,166,400 - Step 5: Solve for x
x = 233,661,114,915,166,400/402,409,183.15 - Step 6: Final answer
x = 580,655,523.53
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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.