Finding the Fourth Proportional to 23,128,348.91, 31,920,520.50 and 13,336,880.63
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Solution
The fourth proportional to 23,128,348.91, 31,920,520.50 and 13,336,880.63 is: 18,406,855.29
Step by Step Solution
- Step 1: Write the proportion equation
23,128,348.91 : 31,920,520.50 = 13,336,880.63 : x - Step 2: Convert to fraction form
23,128,348.91/31,920,520.50 = 13,336,880.63/x - Step 3: Cross multiply
23,128,348.91x = 31,920,520.50 × 13,336,880.63 - Step 4: Simplify right side
23,128,348.91x = 425,720,171,396,365.31 - Step 5: Solve for x
x = 425,720,171,396,365.31/23,128,348.91 - Step 6: Final answer
x = 18,406,855.29
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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.