Finding the Fourth Proportional to 142,198,291.12, 213,110,157.82 and 60,215,726.68
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Solution
The fourth proportional to 142,198,291.12, 213,110,157.82 and 60,215,726.68 is: 90,244,284.34
Step by Step Solution
- Step 1: Write the proportion equation
142,198,291.12 : 213,110,157.82 = 60,215,726.68 : x - Step 2: Convert to fraction form
142,198,291.12/213,110,157.82 = 60,215,726.68/x - Step 3: Cross multiply
142,198,291.12x = 213,110,157.82 × 60,215,726.68 - Step 4: Simplify right side
142,198,291.12x = 12,832,583,016,020,784 - Step 5: Solve for x
x = 12,832,583,016,020,784/142,198,291.12 - Step 6: Final answer
x = 90,244,284.34
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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.