Finding the Fourth Proportional to 138,279,456.01, 190,819,970.42 and 75,557,706.98
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Solution
The fourth proportional to 138,279,456.01, 190,819,970.42 and 75,557,706.98 is: 104,266,532.61
Step by Step Solution
- Step 1: Write the proportion equation
138,279,456.01 : 190,819,970.42 = 75,557,706.98 : x - Step 2: Convert to fraction form
138,279,456.01/190,819,970.42 = 75,557,706.98/x - Step 3: Cross multiply
138,279,456.01x = 190,819,970.42 × 75,557,706.98 - Step 4: Simplify right side
138,279,456.01x = 14,417,919,409,594,738 - Step 5: Solve for x
x = 14,417,919,409,594,738/138,279,456.01 - Step 6: Final answer
x = 104,266,532.61
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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.