Finding the Fourth Proportional to 119,743,953.70, 179,615,930.55 and 81,480,201.70
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Solution
The fourth proportional to 119,743,953.70, 179,615,930.55 and 81,480,201.70 is: 122,220,302.55
Step by Step Solution
- Step 1: Write the proportion equation
119,743,953.70 : 179,615,930.55 = 81,480,201.70 : x - Step 2: Convert to fraction form
119,743,953.70/179,615,930.55 = 81,480,201.70/x - Step 3: Cross multiply
119,743,953.70x = 179,615,930.55 × 81,480,201.70 - Step 4: Simplify right side
119,743,953.70x = 14,635,142,249,747,194 - Step 5: Solve for x
x = 14,635,142,249,747,194/119,743,953.70 - Step 6: Final answer
x = 122,220,302.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.