Finding the Fourth Proportional to 62,212,912.20, 93,319,368.30 and 53,142,985.80
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Solution
The fourth proportional to 62,212,912.20, 93,319,368.30 and 53,142,985.80 is: 79,714,478.70
Step by Step Solution
- Step 1: Write the proportion equation
62,212,912.20 : 93,319,368.30 = 53,142,985.80 : x - Step 2: Convert to fraction form
62,212,912.20/93,319,368.30 = 53,142,985.80/x - Step 3: Cross multiply
62,212,912.20x = 93,319,368.30 × 53,142,985.80 - Step 4: Simplify right side
62,212,912.20x = 4,959,269,864,431,870 - Step 5: Solve for x
x = 4,959,269,864,431,870/62,212,912.20 - Step 6: Final answer
x = 79,714,478.70
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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.