Finding the Fourth Proportional to 39,670,411.05, 59,478,450.75 and 20,201,951.63
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Solution
The fourth proportional to 39,670,411.05, 59,478,450.75 and 20,201,951.63 is: 30,289,093.38
Step by Step Solution
- Step 1: Write the proportion equation
39,670,411.05 : 59,478,450.75 = 20,201,951.63 : x - Step 2: Convert to fraction form
39,670,411.05/59,478,450.75 = 20,201,951.63/x - Step 3: Cross multiply
39,670,411.05x = 59,478,450.75 × 20,201,951.63 - Step 4: Simplify right side
39,670,411.05x = 1,201,580,784,781,445 - Step 5: Solve for x
x = 1,201,580,784,781,445/39,670,411.05 - Step 6: Final answer
x = 30,289,093.38
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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.