Finding the Fourth Proportional to 138,135,445.54, 190,625,745.67 and 76,254,455.50
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Solution
The fourth proportional to 138,135,445.54, 190,625,745.67 and 76,254,455.50 is: 105,230,503.17
Step by Step Solution
- Step 1: Write the proportion equation
138,135,445.54 : 190,625,745.67 = 76,254,455.50 : x - Step 2: Convert to fraction form
138,135,445.54/190,625,745.67 = 76,254,455.50/x - Step 3: Cross multiply
138,135,445.54x = 190,625,745.67 × 76,254,455.50 - Step 4: Simplify right side
138,135,445.54x = 14,536,062,440,347,332 - Step 5: Solve for x
x = 14,536,062,440,347,332/138,135,445.54 - Step 6: Final answer
x = 105,230,503.17
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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.