Finding the Fourth Proportional to 1,239,042,283.58, 1,858,018,033.71 and 656,640,077.49
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Solution
The fourth proportional to 1,239,042,283.58, 1,858,018,033.71 and 656,640,077.49 is: 984,671,081.69
Step by Step Solution
- Step 1: Write the proportion equation
1,239,042,283.58 : 1,858,018,033.71 = 656,640,077.49 : x - Step 2: Convert to fraction form
1,239,042,283.58/1,858,018,033.71 = 656,640,077.49/x - Step 3: Cross multiply
1,239,042,283.58x = 1,858,018,033.71 × 656,640,077.49 - Step 4: Simplify right side
1,239,042,283.58x = 1,220,049,105,633,152,000 - Step 5: Solve for x
x = 1,220,049,105,633,152,000/1,239,042,283.58 - Step 6: Final answer
x = 984,671,081.69
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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.