Finding the Fourth Proportional to 138,247,992.51, 190,785,042.05 and 75,528,152.82
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Solution
The fourth proportional to 138,247,992.51, 190,785,042.05 and 75,528,152.82 is: 104,230,387.37
Step by Step Solution
- Step 1: Write the proportion equation
138,247,992.51 : 190,785,042.05 = 75,528,152.82 : x - Step 2: Convert to fraction form
138,247,992.51/190,785,042.05 = 75,528,152.82/x - Step 3: Cross multiply
138,247,992.51x = 190,785,042.05 × 75,528,152.82 - Step 4: Simplify right side
138,247,992.51x = 14,409,641,812,210,678 - Step 5: Solve for x
x = 14,409,641,812,210,678/138,247,992.51 - Step 6: Final answer
x = 104,230,387.37
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.