Finding the Fourth Proportional to 18,454,403.80, 27,681,605.70 and 7,692,723.55
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Solution
The fourth proportional to 18,454,403.80, 27,681,605.70 and 7,692,723.55 is: 11,539,085.33
Step by Step Solution
- Step 1: Write the proportion equation
18,454,403.80 : 27,681,605.70 = 7,692,723.55 : x - Step 2: Convert to fraction form
18,454,403.80/27,681,605.70 = 7,692,723.55/x - Step 3: Cross multiply
18,454,403.80x = 27,681,605.70 × 7,692,723.55 - Step 4: Simplify right side
18,454,403.80x = 212,946,940,070,204.22 - Step 5: Solve for x
x = 212,946,940,070,204.22/18,454,403.80 - Step 6: Final answer
x = 11,539,085.33
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.