Finding the Fourth Proportional to 161,352,205.20, 242,028,307.80 and 40,183,657.20
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Solution
The fourth proportional to 161,352,205.20, 242,028,307.80 and 40,183,657.20 is: 60,275,485.80
Step by Step Solution
- Step 1: Write the proportion equation
161,352,205.20 : 242,028,307.80 = 40,183,657.20 : x - Step 2: Convert to fraction form
161,352,205.20/242,028,307.80 = 40,183,657.20/x - Step 3: Cross multiply
161,352,205.20x = 242,028,307.80 × 40,183,657.20 - Step 4: Simplify right side
161,352,205.20x = 9,725,582,553,331,288 - Step 5: Solve for x
x = 9,725,582,553,331,288/161,352,205.20 - Step 6: Final answer
x = 60,275,485.80
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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.