Finding the Fourth Proportional to 66,429,783.70, 99,644,675.55 and 52,992,855.70
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Solution
The fourth proportional to 66,429,783.70, 99,644,675.55 and 52,992,855.70 is: 79,489,283.55
Step by Step Solution
- Step 1: Write the proportion equation
66,429,783.70 : 99,644,675.55 = 52,992,855.70 : x - Step 2: Convert to fraction form
66,429,783.70/99,644,675.55 = 52,992,855.70/x - Step 3: Cross multiply
66,429,783.70x = 99,644,675.55 × 52,992,855.70 - Step 4: Simplify right side
66,429,783.70x = 5,280,455,912,694,468 - Step 5: Solve for x
x = 5,280,455,912,694,468/66,429,783.70 - Step 6: Final answer
x = 79,489,283.55
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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.