Finding the Fourth Proportional to 15,291,490.60, 22,937,235.90 and 8,489,045.80
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Solution
The fourth proportional to 15,291,490.60, 22,937,235.90 and 8,489,045.80 is: 12,733,568.70
Step by Step Solution
- Step 1: Write the proportion equation
15,291,490.60 : 22,937,235.90 = 8,489,045.80 : x - Step 2: Convert to fraction form
15,291,490.60/22,937,235.90 = 8,489,045.80/x - Step 3: Cross multiply
15,291,490.60x = 22,937,235.90 × 8,489,045.80 - Step 4: Simplify right side
15,291,490.60x = 194,715,246,080,504.22 - Step 5: Solve for x
x = 194,715,246,080,504.22/15,291,490.60 - Step 6: Final answer
x = 12,733,568.70
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Double scale
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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.