Finding the Fourth Proportional to 66,429,121.80, 99,643,682.70 and 30,597,313.80
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Solution
The fourth proportional to 66,429,121.80, 99,643,682.70 and 30,597,313.80 is: 45,895,970.70
Step by Step Solution
- Step 1: Write the proportion equation
66,429,121.80 : 99,643,682.70 = 30,597,313.80 : x - Step 2: Convert to fraction form
66,429,121.80/99,643,682.70 = 30,597,313.80/x - Step 3: Cross multiply
66,429,121.80x = 99,643,682.70 × 30,597,313.80 - Step 4: Simplify right side
66,429,121.80x = 3,048,829,027,759,531.50 - Step 5: Solve for x
x = 3,048,829,027,759,531.50/66,429,121.80 - Step 6: Final answer
x = 45,895,970.70
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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.