Finding the Fourth Proportional to 663,552,605.20, 995,328,907.80 and 578,617,949.20
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Solution
The fourth proportional to 663,552,605.20, 995,328,907.80 and 578,617,949.20 is: 867,926,923.80
Step by Step Solution
- Step 1: Write the proportion equation
663,552,605.20 : 995,328,907.80 = 578,617,949.20 : x - Step 2: Convert to fraction form
663,552,605.20/995,328,907.80 = 578,617,949.20/x - Step 3: Cross multiply
663,552,605.20x = 995,328,907.80 × 578,617,949.20 - Step 4: Simplify right side
663,552,605.20x = 575,915,171,410,711,872 - Step 5: Solve for x
x = 575,915,171,410,711,872/663,552,605.20 - Step 6: Final answer
x = 867,926,923.80
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1.5x scale
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.