Finding the Fourth Proportional to 138,135,495.54, 190,625,814.68 and 76,254,505.50
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Solution
The fourth proportional to 138,135,495.54, 190,625,814.68 and 76,254,505.50 is: 105,230,572.18
Step by Step Solution
- Step 1: Write the proportion equation
138,135,495.54 : 190,625,814.68 = 76,254,505.50 : x - Step 2: Convert to fraction form
138,135,495.54/190,625,814.68 = 76,254,505.50/x - Step 3: Cross multiply
138,135,495.54x = 190,625,814.68 × 76,254,505.50 - Step 4: Simplify right side
138,135,495.54x = 14,536,077,233,576,770 - Step 5: Solve for x
x = 14,536,077,233,576,770/138,135,495.54 - Step 6: Final answer
x = 105,230,572.18
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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.