Finding the Fourth Proportional to 878,083,548.74, 1,317,202,743.41 and 247,821,220.92
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Solution
The fourth proportional to 878,083,548.74, 1,317,202,743.41 and 247,821,220.92 is: 371,753,681.69
Step by Step Solution
- Step 1: Write the proportion equation
878,083,548.74 : 1,317,202,743.41 = 247,821,220.92 : x - Step 2: Convert to fraction form
878,083,548.74/1,317,202,743.41 = 247,821,220.92/x - Step 3: Cross multiply
878,083,548.74x = 1,317,202,743.41 × 247,821,220.92 - Step 4: Simplify right side
878,083,548.74x = 326,430,792,075,681,792 - Step 5: Solve for x
x = 326,430,792,075,681,792/878,083,548.74 - Step 6: Final answer
x = 371,753,681.69
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1.5x scale
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.