Finding the Fourth Proportional to 66,437,911.80, 99,656,867.70 and 60,060,619.80
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Solution
The fourth proportional to 66,437,911.80, 99,656,867.70 and 60,060,619.80 is: 90,090,929.70
Step by Step Solution
- Step 1: Write the proportion equation
66,437,911.80 : 99,656,867.70 = 60,060,619.80 : x - Step 2: Convert to fraction form
66,437,911.80/99,656,867.70 = 60,060,619.80/x - Step 3: Cross multiply
66,437,911.80x = 99,656,867.70 × 60,060,619.80 - Step 4: Simplify right side
66,437,911.80x = 5,985,453,241,388,600 - Step 5: Solve for x
x = 5,985,453,241,388,600/66,437,911.80 - Step 6: Final answer
x = 90,090,929.70
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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.