Finding the Fourth Proportional to 15,143,613.80, 22,715,420.70 and 9,171,645.80
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Solution
The fourth proportional to 15,143,613.80, 22,715,420.70 and 9,171,645.80 is: 13,757,468.70
Step by Step Solution
- Step 1: Write the proportion equation
15,143,613.80 : 22,715,420.70 = 9,171,645.80 : x - Step 2: Convert to fraction form
15,143,613.80/22,715,420.70 = 9,171,645.80/x - Step 3: Cross multiply
15,143,613.80x = 22,715,420.70 × 9,171,645.80 - Step 4: Simplify right side
15,143,613.80x = 208,337,792,858,388.06 - Step 5: Solve for x
x = 208,337,792,858,388.06/15,143,613.80 - Step 6: Final answer
x = 13,757,468.70
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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.