Finding the Fourth Proportional to 71,284,388.36, 98,355,595.52 and 40,344,557.63
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Solution
The fourth proportional to 71,284,388.36, 98,355,595.52 and 40,344,557.63 is: 55,665,947.10
Step by Step Solution
- Step 1: Write the proportion equation
71,284,388.36 : 98,355,595.52 = 40,344,557.63 : x - Step 2: Convert to fraction form
71,284,388.36/98,355,595.52 = 40,344,557.63/x - Step 3: Cross multiply
71,284,388.36x = 98,355,595.52 × 40,344,557.63 - Step 4: Simplify right side
71,284,388.36x = 3,968,112,991,298,693 - Step 5: Solve for x
x = 3,968,112,991,298,693/71,284,388.36 - Step 6: Final answer
x = 55,665,947.10
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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.