Finding the Fourth Proportional to 86,370,388.98, 119,191,142.43 and 47,212,320.84
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Solution
The fourth proportional to 86,370,388.98, 119,191,142.43 and 47,212,320.84 is: 65,153,005.84
Step by Step Solution
- Step 1: Write the proportion equation
86,370,388.98 : 119,191,142.43 = 47,212,320.84 : x - Step 2: Convert to fraction form
86,370,388.98/119,191,142.43 = 47,212,320.84/x - Step 3: Cross multiply
86,370,388.98x = 119,191,142.43 × 47,212,320.84 - Step 4: Simplify right side
86,370,388.98x = 5,627,290,457,691,298 - Step 5: Solve for x
x = 5,627,290,457,691,298/86,370,388.98 - Step 6: Final answer
x = 65,153,005.84
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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.