Finding the Fourth Proportional to 26,081,780.10, 39,122,670.15 and 16,381,997.70
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Solution
The fourth proportional to 26,081,780.10, 39,122,670.15 and 16,381,997.70 is: 24,572,996.55
Step by Step Solution
- Step 1: Write the proportion equation
26,081,780.10 : 39,122,670.15 = 16,381,997.70 : x - Step 2: Convert to fraction form
26,081,780.10/39,122,670.15 = 16,381,997.70/x - Step 3: Cross multiply
26,081,780.10x = 39,122,670.15 × 16,381,997.70 - Step 4: Simplify right side
26,081,780.10x = 640,907,492,415,158.62 - Step 5: Solve for x
x = 640,907,492,415,158.62/26,081,780.10 - Step 6: Final answer
x = 24,572,996.55
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Double scale
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Similar ratio
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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.