Finding the Fourth Proportional to 142,231,325.80, 213,346,988.70 and 106,399,517.80
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Solution
The fourth proportional to 142,231,325.80, 213,346,988.70 and 106,399,517.80 is: 159,599,276.70
Step by Step Solution
- Step 1: Write the proportion equation
142,231,325.80 : 213,346,988.70 = 106,399,517.80 : x - Step 2: Convert to fraction form
142,231,325.80/213,346,988.70 = 106,399,517.80/x - Step 3: Cross multiply
142,231,325.80x = 213,346,988.70 × 106,399,517.80 - Step 4: Simplify right side
142,231,325.80x = 22,700,016,721,762,048 - Step 5: Solve for x
x = 22,700,016,721,762,048/142,231,325.80 - Step 6: Final answer
x = 159,599,276.70
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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.