Finding the Fourth Proportional to 138,081,728.89, 190,552,395.27 and 76,201,624.99
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Solution
The fourth proportional to 138,081,728.89, 190,552,395.27 and 76,201,624.99 is: 105,158,026.93
Step by Step Solution
- Step 1: Write the proportion equation
138,081,728.89 : 190,552,395.27 = 76,201,624.99 : x - Step 2: Convert to fraction form
138,081,728.89/190,552,395.27 = 76,201,624.99/x - Step 3: Cross multiply
138,081,728.89x = 190,552,395.27 × 76,201,624.99 - Step 4: Simplify right side
138,081,728.89x = 14,520,402,165,310,790 - Step 5: Solve for x
x = 14,520,402,165,310,790/138,081,728.89 - Step 6: Final answer
x = 105,158,026.93
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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.