Finding the Fourth Proportional to 192,169,990.80, 288,254,986.20 and 88,538,995.80
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Solution
The fourth proportional to 192,169,990.80, 288,254,986.20 and 88,538,995.80 is: 132,808,493.70
Step by Step Solution
- Step 1: Write the proportion equation
192,169,990.80 : 288,254,986.20 = 88,538,995.80 : x - Step 2: Convert to fraction form
192,169,990.80/288,254,986.20 = 88,538,995.80/x - Step 3: Cross multiply
192,169,990.80x = 288,254,986.20 × 88,538,995.80 - Step 4: Simplify right side
192,169,990.80x = 25,521,807,012,490,856 - Step 5: Solve for x
x = 25,521,807,012,490,856/192,169,990.80 - Step 6: Final answer
x = 132,808,493.70
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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.