Finding the Fourth Proportional to 138,093,845.08, 190,566,804.90 and 75,370,392.76
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Solution
The fourth proportional to 138,093,845.08, 190,566,804.90 and 75,370,392.76 is: 104,009,667.66
Step by Step Solution
- Step 1: Write the proportion equation
138,093,845.08 : 190,566,804.90 = 75,370,392.76 : x - Step 2: Convert to fraction form
138,093,845.08/190,566,804.90 = 75,370,392.76/x - Step 3: Cross multiply
138,093,845.08x = 190,566,804.90 × 75,370,392.76 - Step 4: Simplify right side
138,093,845.08x = 14,363,094,932,331,294 - Step 5: Solve for x
x = 14,363,094,932,331,294/138,093,845.08 - Step 6: Final answer
x = 104,009,667.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.