Finding the Fourth Proportional to 118,465,299.20, 177,697,948.80 and 98,309,907.20
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Solution
The fourth proportional to 118,465,299.20, 177,697,948.80 and 98,309,907.20 is: 147,464,860.80
Step by Step Solution
- Step 1: Write the proportion equation
118,465,299.20 : 177,697,948.80 = 98,309,907.20 : x - Step 2: Convert to fraction form
118,465,299.20/177,697,948.80 = 98,309,907.20/x - Step 3: Cross multiply
118,465,299.20x = 177,697,948.80 × 98,309,907.20 - Step 4: Simplify right side
118,465,299.20x = 17,469,468,856,158,354 - Step 5: Solve for x
x = 17,469,468,856,158,354/118,465,299.20 - Step 6: Final answer
x = 147,464,860.80
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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.