Finding the Fourth Proportional to 139,740,664.14, 192,842,864.28 and 80,197,212.15
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Solution
The fourth proportional to 139,740,664.14, 192,842,864.28 and 80,197,212.15 is: 110,672,581.91
Step by Step Solution
- Step 1: Write the proportion equation
139,740,664.14 : 192,842,864.28 = 80,197,212.15 : x - Step 2: Convert to fraction form
139,740,664.14/192,842,864.28 = 80,197,212.15/x - Step 3: Cross multiply
139,740,664.14x = 192,842,864.28 × 80,197,212.15 - Step 4: Simplify right side
139,740,664.14x = 15,465,460,098,276,818 - Step 5: Solve for x
x = 15,465,460,098,276,818/139,740,664.14 - Step 6: Final answer
x = 110,672,581.91
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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.