Finding the Fourth Proportional to 18,139,543.84, 27,209,146.87 and 7,354,281.05
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Solution
The fourth proportional to 18,139,543.84, 27,209,146.87 and 7,354,281.05 is: 11,031,353.10
Step by Step Solution
- Step 1: Write the proportion equation
18,139,543.84 : 27,209,146.87 = 7,354,281.05 : x - Step 2: Convert to fraction form
18,139,543.84/27,209,146.87 = 7,354,281.05/x - Step 3: Cross multiply
18,139,543.84x = 27,209,146.87 × 7,354,281.05 - Step 4: Simplify right side
18,139,543.84x = 200,103,713,212,707.81 - Step 5: Solve for x
x = 200,103,713,212,707.81/18,139,543.84 - Step 6: Final answer
x = 11,031,353.10
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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.