Finding the Fourth Proportional to 18,441,679.78, 27,681,998.56 and 10,361,560.42
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Solution
The fourth proportional to 18,441,679.78, 27,681,998.56 and 10,361,560.42 is: 15,553,284.95
Step by Step Solution
- Step 1: Write the proportion equation
18,441,679.78 : 27,681,998.56 = 10,361,560.42 : x - Step 2: Convert to fraction form
18,441,679.78/27,681,998.56 = 10,361,560.42/x - Step 3: Cross multiply
18,441,679.78x = 27,681,998.56 × 10,361,560.42 - Step 4: Simplify right side
18,441,679.78x = 286,828,700,625,793 - Step 5: Solve for x
x = 286,828,700,625,793/18,441,679.78 - Step 6: Final answer
x = 15,553,284.95
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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.