Finding the Fourth Proportional to 18,255,451.98, 25,185,140.33 and 10,909,092.18
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Solution
The fourth proportional to 18,255,451.98, 25,185,140.33 and 10,909,092.18 is: 15,050,135.03
Step by Step Solution
- Step 1: Write the proportion equation
18,255,451.98 : 25,185,140.33 = 10,909,092.18 : x - Step 2: Convert to fraction form
18,255,451.98/25,185,140.33 = 10,909,092.18/x - Step 3: Cross multiply
18,255,451.98x = 25,185,140.33 × 10,909,092.18 - Step 4: Simplify right side
18,255,451.98x = 274,747,017,371,660.16 - Step 5: Solve for x
x = 274,747,017,371,660.16/18,255,451.98 - Step 6: Final answer
x = 15,050,135.03
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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.