Finding the Fourth Proportional to 118,583,149.20, 163,643,140.14 and 66,372,169.20
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Solution
The fourth proportional to 118,583,149.20, 163,643,140.14 and 66,372,169.20 is: 91,592,694.74
Step by Step Solution
- Step 1: Write the proportion equation
118,583,149.20 : 163,643,140.14 = 66,372,169.20 : x - Step 2: Convert to fraction form
118,583,149.20/163,643,140.14 = 66,372,169.20/x - Step 3: Cross multiply
118,583,149.20x = 163,643,140.14 × 66,372,169.20 - Step 4: Simplify right side
118,583,149.20x = 10,861,350,185,791,392 - Step 5: Solve for x
x = 10,861,350,185,791,392/118,583,149.20 - Step 6: Final answer
x = 91,592,694.74
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.