Finding the Fourth Proportional to 7,791,550.18, 11,687,325.37 and 2,111,774.49
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Solution
The fourth proportional to 7,791,550.18, 11,687,325.37 and 2,111,774.49 is: 3,167,661.76
Step by Step Solution
- Step 1: Write the proportion equation
7,791,550.18 : 11,687,325.37 = 2,111,774.49 : x - Step 2: Convert to fraction form
7,791,550.18/11,687,325.37 = 2,111,774.49/x - Step 3: Cross multiply
7,791,550.18x = 11,687,325.37 × 2,111,774.49 - Step 4: Simplify right side
7,791,550.18x = 24,680,995,567,416.38 - Step 5: Solve for x
x = 24,680,995,567,416.38/7,791,550.18 - Step 6: Final answer
x = 3,167,661.76
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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.