Finding the Fourth Proportional to 438,846,898.32, 605,523,440.97 and 260,197,786.53
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Solution
The fourth proportional to 438,846,898.32, 605,523,440.97 and 260,197,786.53 is: 359,022,382.60
Step by Step Solution
- Step 1: Write the proportion equation
438,846,898.32 : 605,523,440.97 = 260,197,786.53 : x - Step 2: Convert to fraction form
438,846,898.32/605,523,440.97 = 260,197,786.53/x - Step 3: Cross multiply
438,846,898.32x = 605,523,440.97 × 260,197,786.53 - Step 4: Simplify right side
438,846,898.32x = 157,555,859,032,423,136 - Step 5: Solve for x
x = 157,555,859,032,423,136/438,846,898.32 - Step 6: Final answer
x = 359,022,382.60
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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.