Finding the Fourth Proportional to 7,858,283,761.79, 10,844,376,424.40 and 4,289,990,667.68
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Solution
The fourth proportional to 7,858,283,761.79, 10,844,376,424.40 and 4,289,990,667.68 is: 5,920,157,004.72
Step by Step Solution
- Step 1: Write the proportion equation
7,858,283,761.79 : 10,844,376,424.40 = 4,289,990,667.68 : x - Step 2: Convert to fraction form
7,858,283,761.79/10,844,376,424.40 = 4,289,990,667.68/x - Step 3: Cross multiply
7,858,283,761.79x = 10,844,376,424.40 × 4,289,990,667.68 - Step 4: Simplify right side
7,858,283,761.79x = 46,522,273,657,472,180,224 - Step 5: Solve for x
x = 46,522,273,657,472,180,224/7,858,283,761.79 - Step 6: Final answer
x = 5,920,157,004.72
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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.