Finding the Fourth Proportional to 103,602,947.63, 142,972,524.58 and 57,193,582.91
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Solution
The fourth proportional to 103,602,947.63, 142,972,524.58 and 57,193,582.91 is: 78,927,396.62
Step by Step Solution
- Step 1: Write the proportion equation
103,602,947.63 : 142,972,524.58 = 57,193,582.91 : x - Step 2: Convert to fraction form
103,602,947.63/142,972,524.58 = 57,193,582.91/x - Step 3: Cross multiply
103,602,947.63x = 142,972,524.58 × 57,193,582.91 - Step 4: Simplify right side
103,602,947.63x = 8,177,110,938,418,243 - Step 5: Solve for x
x = 8,177,110,938,418,243/103,602,947.63 - Step 6: Final answer
x = 78,927,396.62
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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.