Finding the Fourth Proportional to 13,146,430.57, 18,143,012.99 and 7,265,938.25
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Solution
The fourth proportional to 13,146,430.57, 18,143,012.99 and 7,265,938.25 is: 10,027,513.66
Step by Step Solution
- Step 1: Write the proportion equation
13,146,430.57 : 18,143,012.99 = 7,265,938.25 : x - Step 2: Convert to fraction form
13,146,430.57/18,143,012.99 = 7,265,938.25/x - Step 3: Cross multiply
13,146,430.57x = 18,143,012.99 × 7,265,938.25 - Step 4: Simplify right side
13,146,430.57x = 131,826,012,063,315.72 - Step 5: Solve for x
x = 131,826,012,063,315.72/13,146,430.57 - Step 6: Final answer
x = 10,027,513.66
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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.