Finding the Fourth Proportional to 39,808,921.74, 54,934,544.79 and 22,168,734.18
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Solution
The fourth proportional to 39,808,921.74, 54,934,544.79 and 22,168,734.18 is: 30,591,869.05
Step by Step Solution
- Step 1: Write the proportion equation
39,808,921.74 : 54,934,544.79 = 22,168,734.18 : x - Step 2: Convert to fraction form
39,808,921.74/54,934,544.79 = 22,168,734.18/x - Step 3: Cross multiply
39,808,921.74x = 54,934,544.79 × 22,168,734.18 - Step 4: Simplify right side
39,808,921.74x = 1,217,829,320,748,814 - Step 5: Solve for x
x = 1,217,829,320,748,814/39,808,921.74 - Step 6: Final answer
x = 30,591,869.05
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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.