Finding the Fourth Proportional to 73,993,815.20, 110,990,722.80 and 72,718,356.80
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Solution
The fourth proportional to 73,993,815.20, 110,990,722.80 and 72,718,356.80 is: 109,077,535.20
Step by Step Solution
- Step 1: Write the proportion equation
73,993,815.20 : 110,990,722.80 = 72,718,356.80 : x - Step 2: Convert to fraction form
73,993,815.20/110,990,722.80 = 72,718,356.80/x - Step 3: Cross multiply
73,993,815.20x = 110,990,722.80 × 72,718,356.80 - Step 4: Simplify right side
73,993,815.20x = 8,071,062,982,060,294 - Step 5: Solve for x
x = 8,071,062,982,060,294/73,993,815.20 - Step 6: Final answer
x = 109,077,535.20
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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.