Finding the Fourth Proportional to 77,380,696.62, 106,724,915.28 and 47,995,552.26
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Solution
The fourth proportional to 77,380,696.62, 106,724,915.28 and 47,995,552.26 is: 66,196,370.32
Step by Step Solution
- Step 1: Write the proportion equation
77,380,696.62 : 106,724,915.28 = 47,995,552.26 : x - Step 2: Convert to fraction form
77,380,696.62/106,724,915.28 = 47,995,552.26/x - Step 3: Cross multiply
77,380,696.62x = 106,724,915.28 × 47,995,552.26 - Step 4: Simplify right side
77,380,696.62x = 5,122,321,248,765,312 - Step 5: Solve for x
x = 5,122,321,248,765,312/77,380,696.62 - Step 6: Final answer
x = 66,196,370.32
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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.