Finding the Fourth Proportional to 261,199,289.64, 360,444,212.72 and 142,122,371.98
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Solution
The fourth proportional to 261,199,289.64, 360,444,212.72 and 142,122,371.98 is: 196,122,993.09
Step by Step Solution
- Step 1: Write the proportion equation
261,199,289.64 : 360,444,212.72 = 142,122,371.98 : x - Step 2: Convert to fraction form
261,199,289.64/360,444,212.72 = 142,122,371.98/x - Step 3: Cross multiply
261,199,289.64x = 360,444,212.72 × 142,122,371.98 - Step 4: Simplify right side
261,199,289.64x = 51,227,186,478,230,088 - Step 5: Solve for x
x = 51,227,186,478,230,088/261,199,289.64 - Step 6: Final answer
x = 196,122,993.09
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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.