Finding the Fourth Proportional to 142,070,764.28, 195,949,621.70 and 122,257,924.14
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Solution
The fourth proportional to 142,070,764.28, 195,949,621.70 and 122,257,924.14 is: 168,622,968.32
Step by Step Solution
- Step 1: Write the proportion equation
142,070,764.28 : 195,949,621.70 = 122,257,924.14 : x - Step 2: Convert to fraction form
142,070,764.28/195,949,621.70 = 122,257,924.14/x - Step 3: Cross multiply
142,070,764.28x = 195,949,621.70 × 122,257,924.14 - Step 4: Simplify right side
142,070,764.28x = 23,956,393,984,411,456 - Step 5: Solve for x
x = 23,956,393,984,411,456/142,070,764.28 - Step 6: Final answer
x = 168,622,968.32
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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.