Finding the Fourth Proportional to 18,389,223.62, 25,376,190.70 and 10,129,108.08
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Solution
The fourth proportional to 18,389,223.62, 25,376,190.70 and 10,129,108.08 is: 13,977,652.54
Step by Step Solution
- Step 1: Write the proportion equation
18,389,223.62 : 25,376,190.70 = 10,129,108.08 : x - Step 2: Convert to fraction form
18,389,223.62/25,376,190.70 = 10,129,108.08/x - Step 3: Cross multiply
18,389,223.62x = 25,376,190.70 × 10,129,108.08 - Step 4: Simplify right side
18,389,223.62x = 257,038,178,258,990.84 - Step 5: Solve for x
x = 257,038,178,258,990.84/18,389,223.62 - Step 6: Final answer
x = 13,977,652.54
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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.