Finding the Fourth Proportional to 142,231,324.80, 213,346,987.20 and 106,399,516.80
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Solution
The fourth proportional to 142,231,324.80, 213,346,987.20 and 106,399,516.80 is: 159,599,275.20
Step by Step Solution
- Step 1: Write the proportion equation
142,231,324.80 : 213,346,987.20 = 106,399,516.80 : x - Step 2: Convert to fraction form
142,231,324.80/213,346,987.20 = 106,399,516.80/x - Step 3: Cross multiply
142,231,324.80x = 213,346,987.20 × 106,399,516.80 - Step 4: Simplify right side
142,231,324.80x = 22,700,016,348,815,784 - Step 5: Solve for x
x = 22,700,016,348,815,784/142,231,324.80 - Step 6: Final answer
x = 159,599,275.20
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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.