Finding the Fourth Proportional to 156,572,068.20, 234,858,102.30 and 142,463,293.80
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Solution
The fourth proportional to 156,572,068.20, 234,858,102.30 and 142,463,293.80 is: 213,694,940.70
Step by Step Solution
- Step 1: Write the proportion equation
156,572,068.20 : 234,858,102.30 = 142,463,293.80 : x - Step 2: Convert to fraction form
156,572,068.20/234,858,102.30 = 142,463,293.80/x - Step 3: Cross multiply
156,572,068.20x = 234,858,102.30 × 142,463,293.80 - Step 4: Simplify right side
156,572,068.20x = 33,458,658,829,275,360 - Step 5: Solve for x
x = 33,458,658,829,275,360/156,572,068.20 - Step 6: Final answer
x = 213,694,940.70
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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.