Finding the Fourth Proportional to 86,906,463.68, 119,928,991.11 and 47,212,968.63
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Solution
The fourth proportional to 86,906,463.68, 119,928,991.11 and 47,212,968.63 is: 65,152,848.88
Step by Step Solution
- Step 1: Write the proportion equation
86,906,463.68 : 119,928,991.11 = 47,212,968.63 : x - Step 2: Convert to fraction form
86,906,463.68/119,928,991.11 = 47,212,968.63/x - Step 3: Cross multiply
86,906,463.68x = 119,928,991.11 × 47,212,968.63 - Step 4: Simplify right side
86,906,463.68x = 5,662,203,695,376,664 - Step 5: Solve for x
x = 5,662,203,695,376,664/86,906,463.68 - Step 6: Final answer
x = 65,152,848.88
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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.