Finding the Fourth Proportional to 18,145,787.48, 25,024,366.24 and 13,243,244.12
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Solution
The fourth proportional to 18,145,787.48, 25,024,366.24 and 13,243,244.12 is: 18,263,400.88
Step by Step Solution
- Step 1: Write the proportion equation
18,145,787.48 : 25,024,366.24 = 13,243,244.12 : x - Step 2: Convert to fraction form
18,145,787.48/25,024,366.24 = 13,243,244.12/x - Step 3: Cross multiply
18,145,787.48x = 25,024,366.24 × 13,243,244.12 - Step 4: Simplify right side
18,145,787.48x = 331,403,791,064,606.44 - Step 5: Solve for x
x = 331,403,791,064,606.44/18,145,787.48 - Step 6: Final answer
x = 18,263,400.88
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1.5x scale
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.