Finding the Fourth Proportional to 13,650,397.98, 18,837,433.70 and 7,538,695.26
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Solution
The fourth proportional to 13,650,397.98, 18,837,433.70 and 7,538,695.26 is: 10,403,335.66
Step by Step Solution
- Step 1: Write the proportion equation
13,650,397.98 : 18,837,433.70 = 7,538,695.26 : x - Step 2: Convert to fraction form
13,650,397.98/18,837,433.70 = 7,538,695.26/x - Step 3: Cross multiply
13,650,397.98x = 18,837,433.70 × 7,538,695.26 - Step 4: Simplify right side
13,650,397.98x = 142,009,672,144,754.25 - Step 5: Solve for x
x = 142,009,672,144,754.25/13,650,397.98 - Step 6: Final answer
x = 10,403,335.66
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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.