Finding the Fourth Proportional to 11,533,421.59, 15,915,617.77 and 6,306,331.21
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Solution
The fourth proportional to 11,533,421.59, 15,915,617.77 and 6,306,331.21 is: 8,702,461.47
Step by Step Solution
- Step 1: Write the proportion equation
11,533,421.59 : 15,915,617.77 = 6,306,331.21 : x - Step 2: Convert to fraction form
11,533,421.59/15,915,617.77 = 6,306,331.21/x - Step 3: Cross multiply
11,533,421.59x = 15,915,617.77 × 6,306,331.21 - Step 4: Simplify right side
11,533,421.59x = 100,369,156,958,271.86 - Step 5: Solve for x
x = 100,369,156,958,271.86/11,533,421.59 - Step 6: Final answer
x = 8,702,461.47
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1.5x scale
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.