Finding the Fourth Proportional to 3,890,782,129.34, 5,836,531,969.74 and 1,270,599,966.20
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Solution
The fourth proportional to 3,890,782,129.34, 5,836,531,969.74 and 1,270,599,966.20 is: 1,906,017,113.51
Step by Step Solution
- Step 1: Write the proportion equation
3,890,782,129.34 : 5,836,531,969.74 = 1,270,599,966.20 : x - Step 2: Convert to fraction form
3,890,782,129.34/5,836,531,969.74 = 1,270,599,966.20/x - Step 3: Cross multiply
3,890,782,129.34x = 5,836,531,969.74 × 1,270,599,966.20 - Step 4: Simplify right side
3,890,782,129.34x = 7,415,897,323,476,862,976 - Step 5: Solve for x
x = 7,415,897,323,476,862,976/3,890,782,129.34 - Step 6: Final answer
x = 1,906,017,113.51
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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.