Finding the Fourth Proportional to 138,931,585.64, 208,429,121.80 and 48,055,097.96
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Solution
The fourth proportional to 138,931,585.64, 208,429,121.80 and 48,055,097.96 is: 72,093,626.66
Step by Step Solution
- Step 1: Write the proportion equation
138,931,585.64 : 208,429,121.80 = 48,055,097.96 : x - Step 2: Convert to fraction form
138,931,585.64/208,429,121.80 = 48,055,097.96/x - Step 3: Cross multiply
138,931,585.64x = 208,429,121.80 × 48,055,097.96 - Step 4: Simplify right side
138,931,585.64x = 10,016,081,865,815,772 - Step 5: Solve for x
x = 10,016,081,865,815,772/138,931,585.64 - Step 6: Final answer
x = 72,093,626.66
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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.