Finding the Fourth Proportional to 5,638,863,962.48, 7,781,176,715.94 and 3,260,155,193.01
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Solution
The fourth proportional to 5,638,863,962.48, 7,781,176,715.94 and 3,260,155,193.01 is: 4,498,750,785.09
Step by Step Solution
- Step 1: Write the proportion equation
5,638,863,962.48 : 7,781,176,715.94 = 3,260,155,193.01 : x - Step 2: Convert to fraction form
5,638,863,962.48/7,781,176,715.94 = 3,260,155,193.01/x - Step 3: Cross multiply
5,638,863,962.48x = 7,781,176,715.94 × 3,260,155,193.01 - Step 4: Simplify right side
5,638,863,962.48x = 25,367,843,678,200,287,232 - Step 5: Solve for x
x = 25,367,843,678,200,287,232/5,638,863,962.48 - Step 6: Final answer
x = 4,498,750,785.09
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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.