Finding the Fourth Proportional to 70,706,686.44, 97,563,984.60 and 39,760,879.44
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Solution
The fourth proportional to 70,706,686.44, 97,563,984.60 and 39,760,879.44 is: 54,863,691.47
Step by Step Solution
- Step 1: Write the proportion equation
70,706,686.44 : 97,563,984.60 = 39,760,879.44 : x - Step 2: Convert to fraction form
70,706,686.44/97,563,984.60 = 39,760,879.44/x - Step 3: Cross multiply
70,706,686.44x = 97,563,984.60 × 39,760,879.44 - Step 4: Simplify right side
70,706,686.44x = 3,879,229,829,366,616 - Step 5: Solve for x
x = 3,879,229,829,366,616/70,706,686.44 - Step 6: Final answer
x = 54,863,691.47
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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.