Finding the Fourth Proportional to 14,697,107.78, 20,280,860.19 and 8,170,340.00
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Solution
The fourth proportional to 14,697,107.78, 20,280,860.19 and 8,170,340.00 is: 11,274,430.70
Step by Step Solution
- Step 1: Write the proportion equation
14,697,107.78 : 20,280,860.19 = 8,170,340.00 : x - Step 2: Convert to fraction form
14,697,107.78/20,280,860.19 = 8,170,340.00/x - Step 3: Cross multiply
14,697,107.78x = 20,280,860.19 × 8,170,340.00 - Step 4: Simplify right side
14,697,107.78x = 165,701,523,143,360.31 - Step 5: Solve for x
x = 165,701,523,143,360.31/14,697,107.78 - Step 6: Final answer
x = 11,274,430.70
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1.5x scale
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.