Finding the Fourth Proportional to 71,429,721.78, 107,133,112.26 and 19,602,220.08
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Solution
The fourth proportional to 71,429,721.78, 107,133,112.26 and 19,602,220.08 is: 29,400,182.33
Step by Step Solution
- Step 1: Write the proportion equation
71,429,721.78 : 107,133,112.26 = 19,602,220.08 : x - Step 2: Convert to fraction form
71,429,721.78/107,133,112.26 = 19,602,220.08/x - Step 3: Cross multiply
71,429,721.78x = 107,133,112.26 × 19,602,220.08 - Step 4: Simplify right side
71,429,721.78x = 2,100,046,844,375,866 - Step 5: Solve for x
x = 2,100,046,844,375,866/71,429,721.78 - Step 6: Final answer
x = 29,400,182.33
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.