Finding the Fourth Proportional to 256,963,558.93, 354,608,723.48 and 139,487,861.58
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Solution
The fourth proportional to 256,963,558.93, 354,608,723.48 and 139,487,861.58 is: 192,492,712.75
Step by Step Solution
- Step 1: Write the proportion equation
256,963,558.93 : 354,608,723.48 = 139,487,861.58 : x - Step 2: Convert to fraction form
256,963,558.93/354,608,723.48 = 139,487,861.58/x - Step 3: Cross multiply
256,963,558.93x = 354,608,723.48 × 139,487,861.58 - Step 4: Simplify right side
256,963,558.93x = 49,463,612,535,193,080 - Step 5: Solve for x
x = 49,463,612,535,193,080/256,963,558.93 - Step 6: Final answer
x = 192,492,712.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.