Finding the Fourth Proportional to 74,886,742.20, 112,330,113.30 and 66,376,687.80
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Solution
The fourth proportional to 74,886,742.20, 112,330,113.30 and 66,376,687.80 is: 99,565,031.70
Step by Step Solution
- Step 1: Write the proportion equation
74,886,742.20 : 112,330,113.30 = 66,376,687.80 : x - Step 2: Convert to fraction form
74,886,742.20/112,330,113.30 = 66,376,687.80/x - Step 3: Cross multiply
74,886,742.20x = 112,330,113.30 × 66,376,687.80 - Step 4: Simplify right side
74,886,742.20x = 7,456,100,861,052,727 - Step 5: Solve for x
x = 7,456,100,861,052,727/74,886,742.20 - Step 6: Final answer
x = 99,565,031.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.