Finding the Fourth Proportional to 70,956,287.20, 106,235,365.20 and 68,965,631.20
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Solution
The fourth proportional to 70,956,287.20, 106,235,365.20 and 68,965,631.20 is: 103,254,965.92
Step by Step Solution
- Step 1: Write the proportion equation
70,956,287.20 : 106,235,365.20 = 68,965,631.20 : x - Step 2: Convert to fraction form
70,956,287.20/106,235,365.20 = 68,965,631.20/x - Step 3: Cross multiply
70,956,287.20x = 106,235,365.20 × 68,965,631.20 - Step 4: Simplify right side
70,956,287.20x = 7,326,589,016,780,515 - Step 5: Solve for x
x = 7,326,589,016,780,515/70,956,287.20 - Step 6: Final answer
x = 103,254,965.92
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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.