Finding the Fourth Proportional to 91,083,742.44, 125,693,409.06 and 49,830,973.80
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Solution
The fourth proportional to 91,083,742.44, 125,693,409.06 and 49,830,973.80 is: 68,765,564.59
Step by Step Solution
- Step 1: Write the proportion equation
91,083,742.44 : 125,693,409.06 = 49,830,973.80 : x - Step 2: Convert to fraction form
91,083,742.44/125,693,409.06 = 49,830,973.80/x - Step 3: Cross multiply
91,083,742.44x = 125,693,409.06 × 49,830,973.80 - Step 4: Simplify right side
91,083,742.44x = 6,263,424,973,701,542 - Step 5: Solve for x
x = 6,263,424,973,701,542/91,083,742.44 - Step 6: Final answer
x = 68,765,564.59
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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.